This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles

for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Designation: F1387 − 23 An American National Standard

Standard Specification for

Performance of Piping and Tubing Mechanically Attached
Fittings1
This standard is issued under the fixed designation F1387; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.

This standard has been approved for use by agencies of the U.S. Department of Defense.

1. Scope* specification: This standard does not purport to address all of

1.1 This specification establishes the performance charac- the safety concerns, if any, associated with its use. It is the
teristics required for mechanically attached fittings (MAFs) for responsibility of the user of this standard to establish appro-
use in piping and tubing systems. These fittings directly attach priate safety, health, and environmental practices and deter-
to pipe or tube by mechanical deformation of the pipe or tube mine the applicability of regulatory limitations prior to use.
or fitting, or a combination thereof, creating a seal and a 1.8 This international standard was developed in accor-
restrained joint. The seal may be created via the mechanical dance with internationally recognized principles on standard-
deformation or created independently. Successful completion ization established in the Decision on Principles for the
of the tests described constitutes completion of the technical Development of International Standards, Guides and Recom-
portion of the qualification process. mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
iTeh Standards
1.2 Supplementary requirements are provided for use when
additional testing or inspection is desired. These shall apply
2. Referenced Documents
only when specified in part or whole by the purchaser in the
(https://standards.iteh.ai)
order. Unless otherwise specified, U.S. Navy contracts shall
invoke the supplementary requirements in whole.
2.1 ASTM Standards:
A53/A53M Specification for Pipe, Steel, Black and Hot-
2

1.3 Unless specific MAF types Document

are specified, the term Preview
Dipped, Zinc-Coated, Welded and Seamless
A106/A106M Specification for Seamless Carbon Steel Pipe
“MAF” shall apply to all types described herein. for High-Temperature Service
1.4 The tests specified in Section 13 and described in Annex A108 Specification for Steel Bar, Carbon and Alloy, Cold-
A1 and the Supplementary Requirements SectionASTM F1387-23Finished
are appli-
https://standards.iteh.ai/catalog/standards/sist/6a833cdc-edc2-42e3-b216-29b69a6ba342/astm-f1387-23
cable only to ascertain the performance characteristics of A109/A109M Specification for Steel, Strip, Carbon (0.25
MAFs. These tests are not intended for use in the evaluation of Maximum Percent), Cold-Rolled
non-MAF products. A167 Specification for Stainless and Heat-Resisting
1.5 A fire performance test is specified in Supplementary Chromium-Nickel Steel Plate, Sheet, and Strip (With-
Requirement S7. This test provides general guidelines to drawn 2014)3
determine the responsiveness of MAFs when subjected to fire. A182/A182M Specification for Forged or Rolled Alloy and
This test should not be considered for use to evaluate non-MAF Stainless Steel Pipe Flanges, Forged Fittings, and Valves
products. and Parts for High-Temperature Service
A213/A213M Specification for Seamless Ferritic and Aus-
1.6 The values stated in SI units are to be regarded as tenitic Alloy-Steel Boiler, Superheater, and Heat-
standard. The values given in parentheses after SI units are Exchanger Tubes
provided for information only and are not considered standard. A234/A234M Specification for Piping Fittings of Wrought
1.7 The following safety hazards caveat applies only to the Carbon Steel and Alloy Steel for Moderate and High
tests listed in Section 13 and the tests described in the Temperature Service
Supplementary Requirements Section and the annexes of this

1 2
This specification is under the jurisdiction of ASTM Committee F25 on Ships For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Machinery and Piping Systems. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved July 1, 2023. Published September 2023. Originally the ASTM website.
3
approved in 1992. Last previous edition approved in 2019 as F1387 – 19. DOI: The last approved version of this historical standard is referenced on
10.1520/F1387-23. www.astm.org.

*A Summary of Changes section appears at the end of this standard

Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States

1
 F1387 − 23
A240/A240M Specification for Chromium and Chromium- B154 Test Method for Mercurous Nitrate Test for Copper
Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Alloys
Vessels and for General Applications B164 Specification for Nickel-Copper Alloy Rod, Bar, and
A249/A249M Specification for Welded Austenitic Steel Wire
Boiler, Superheater, Heat-Exchanger, and Condenser B251/B251M Specification for General Requirements for
Tubes Wrought Seamless Copper and Copper-Alloy Tube
A262 Practices for Detecting Susceptibility to Intergranular B369/B369M Specification for Copper-Nickel Alloy Cast-
Attack in Austenitic Stainless Steels ings
A269/A269M Specification for Seamless and Welded Aus- B371/B371M Specification for Copper-Zinc-Silicon Alloy
tenitic Stainless Steel Tubing for General Service Rod
A276/A276M Specification for Stainless Steel Bars and B564 Specification for Nickel Alloy Forgings
Shapes B633 Specification for Electrodeposited Coatings of Zinc on
A312/A312M Specification for Seamless, Welded, and Iron and Steel
B696 Specification for Coatings of Cadmium Mechanically
Heavily Cold Worked Austenitic Stainless Steel Pipes
Deposited
A335/A335M Specification for Seamless Ferritic Alloy-
B766 Specification for Electrodeposited Coatings of Cad-
Steel Pipe for High-Temperature Service
mium
A370 Test Methods and Definitions for Mechanical Testing
E8/E8M Test Methods for Tension Testing of Metallic Ma-
of Steel Products terials
A380/A380M Practice for Cleaning, Descaling, and Passi- E511 Test Method for Measuring Heat Flux Using a Copper-
vation of Stainless Steel Parts, Equipment, and Systems Constantan Circular Foil, Heat-Flux Transducer
A403/A403M Specification for Wrought Austenitic Stainless E1529 Test Methods for Determining Effects of Large Hy-
Steel Piping Fittings drocarbon Pool Fires on Structural Members and Assem-
A450/A450M Specification for General Requirements for blies
Carbon and Low Alloy Steel Tubes
2.2 Federal Specifications:4
iTeh Standards
A479/A479M Specification for Stainless Steel Bars and
Shapes for Use in Boilers and Other Pressure Vessels
QQ-N-281 Nickel-Copper Alloy Bar, Rod, Plate, Sheet,
Strip, Wire, Forgings and Structural and Special Shaped
(https://standards.iteh.ai)
A530/A530M Specification for General Requirements for
Sections
Specialized Carbon and Alloy Steel Pipe QQ-N-286 Nickel-Copper-Aluminum Alloy, Wrought (UNS
A564/A564M Specification for Hot-Rolled and Cold-
Document Preview
N05500)
Finished Age-Hardening Stainless Steel Bars and Shapes
A576 Specification for Steel Bars, Carbon, Hot-Wrought, 2.3 Military Specifications:4
Special Quality MIL-DTL-901 Shock Tests, H.I. (High Impact) Shipboard
Machinery, Equipment, and Systems, Requirements for
ASTM for
A967 Specification for Chemical Passivation Treatments F1387-23MIL-T-1368 Tube and Pipe, Nickel Copper Alloy Seamless
Stainless Steel Parts
https://standards.iteh.ai/catalog/standards/sist/6a833cdc-edc2-42e3-b216-29b69a6ba342/astm-f1387-23
and Welded
A999/A999M Specification for General Requirements for
MIL-PRF-7808 Lubricating Oil, Aircraft Turbine Engine,
Alloy and Stainless Steel Pipe
Synthetic Base, NATO Code Number O-148
A1016/A1016M Specification for General Requirements for MIL-T-8606 Tubing, Steel Corrosion-Resistant (18-8 Stabi-
Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless lized and Extra Low Carbon)
Steel Tubes MIL-C-15726 Copper-Nickel Alloy, Rod, Flat Products (Flat
B16/B16M Specification for Free-Cutting Brass Rod, Bar Wire, Strip, Sheet, Bar, and Plate) and Forgings
and Shapes for Use in Screw Machines MIL-DTL-16232 Phosphate Coatings, Heavy, Manganese or
B21/B21M Specification for Naval Brass Rod, Bar, and Zinc Base (for Ferrous Metals)
Shapes MIL-T-16420 Tube, Copper Nickel Alloy, Seamless and
B36/B36M Specification for Brass Plate, Sheet, Strip, And Welded (Copper Alloy Numbers 715 and 706)
Rolled Bar MIL-PRF-17331 Lubricating Oil, Steam Turbine and Gear,
B75/B75M Specification for Seamless Copper Tube Moderate Service
B88 Specification for Seamless Copper Water Tube MIL-DTL-18866 Fittings Hydraulic Tube, Flared, 37° and
B111/B111M Specification for Copper and Copper-Alloy Flareless Steel
Seamless Condenser Tubes and Ferrule Stock MIL-T-24107 Tube, Copper, (Seamless) (Copper Numbers
B117 Practice for Operating Salt Spray (Fog) Apparatus 102, 103, 108, 120, 122, and 142)
B121/B121M Specification for Leaded Brass Plate, Sheet, MIL-P-24691/1 Pipe and Tube, Carbon Steel, Seamless
Strip, and Rolled Bar MIL-P-24691/2 Pipe and Tube, Chromium-Molybdenum
B122/B122M Specification for Copper-Nickel-Tin Alloy, Steel, Seamless
Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-
Nickel Alloy Plate, Sheet, Strip, and Rolled Bar
B124/B124M Specification for Copper and Copper Alloy 4
Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
Forging Rod, Bar, and Shapes Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.

2
 F1387 − 23
MIL-P-24691/3 Pipe and Tube, Corrosion-Resistant, Stain- 3.1.2 failure, n—any leakage or joint separation unless
less Steel, Seamless or Welded otherwise determined to be due to a tubing/pipe or fitting
MIL-PRF-83282 Hydraulic Fluid, Fire Resistant, Synthetic defect.
Hydrocarbon Base, Aircraft, Metric, NATO Code Number 3.1.3 fitting, n—connecting device used to join multiple
H-537 pipes or tubes or other MAFs together to create a working
2.4 Military Standards:4 system.
MIL-STD-167-1 Mechanical Vibration of Shipboard Equip- 3.1.3.1 Discussion—Shapes such as couplings, unions,
ment (Type I – Environmental and Type II – Internally elbows, tees, crosses, plugs, adapters, reducers, flanges, and
Excited) special shapes are used as needed to fulfill MAF system design
MIL-STD-777 Schedule of Piping Valves, Fittings, and As- specifications.
sociated Piping Components for Naval Surface Ships
3.1.4 joint, n—interface between pipe or tube and MAFs
MIL-STD-889 Dissimilar Metals
where the seal is maintained or mechanical holding strength is
MIL-STD-1916 DoD Preferred Methods for Acceptance of
applied or maintained within the overall MAF design.
Products
NAVSEA Technical Publication S9074-AR-GIB-010/278 3.1.5 leakage, n—the escape of fluid or gas from any point
2.5 ANSI Publications: 5 of the MAF, including the MAF joint interface, sufficient to
ANSI/ASQ Z1.4 Sampling Procedures and Tables for In- drop or flow from the point of formation or gas bubbles rising
spection by Attributes to the surface after the first minute of submersion.
ANSI/NCSL Z540 General Requirements for Laboratories 3.1.6 mechanically attached fitting (MAF), n—a fitting that
and Measuring and Test Equipment is directly attached to pipe or tube by mechanical deformation
2.6 ASME Publications:6 of the pipe/tube or fitting, or both, creating a seal and a
ASME Boiler and Pressure Vessel Code, Section IX restrained joint. The seal may be created via the mechanical
B36.10M Welded and Seamless Wrought Steel Pipe deformation or created independently.
B46.1 Surface Texture (Surface Roughness, Waviness, and 3.1.7 penalty run, n—a penalty run is performed with
Lay)
2.7 SAE Publications:7 iTeh Standards penalty run MAF specimens when the original MAF test
specimen leaks or separates during testing as a result of any
cause that is not related to the design of the MAF being
(https://standards.iteh.ai)
AMS 2243 Tolerances, Corrosion Resistant Steel Tubing
AMS 5643 Bars, Forgings, Tubing and Rings — 16 Cr 4.0 qualified.
Ni 0.30 (Cb + Ta) 4.0 Cu 3.1.8 penalty run MAF specimens, n—additional speci-
Document Preview
AMS-QQ-P-416 Plating Cadmium (Electrodeposited)
AMS-QQ-S-763 Steel Bars, Wire, Shapes, and Forgings;
men(s) that are tested in the place of the original specimen(s)
(see 3.1.7).
Corrosion Resistant 3.1.8.1 Discussion—These additional MAF specimen(s) are
AMS-STD-753 Corrosion Resistant Steel Parts: Sampling,
Inspection and Testing for Surface Passivation
ASTM F1387-23
assembled using the same methods along with additional
MAFs of the same type, grade, class, and configuration and
https://standards.iteh.ai/catalog/standards/sist/6a833cdc-edc2-42e3-b216-29b69a6ba342/astm-f1387-23
AS3208 Packing, Preformed – AMS 7276, Seal additional pipe or tube with the same wall thickness and
AS3209 Packing, Preformed – AMS 7276, ‘O’ Ring material conditions as the original test specimen.
SAE J514 Hydraulic Tube Fittings
SAE J515 Hydraulic “O” Ring 3.1.9 permanent MAF, n—a fitting whose joint(s) attach
SAE 1010 Carbon Steel: Nonsulfurized Manganese 10 % directly to the pipe or tube to join two or more pipes or tubes
Minimum or other MAFs in a combination of pipes or tubes and
components. In either case, the permanent MAFs cannot be
3. Terminology disassembled and reused after initial assembly.
3.1 Definitions: 3.1.10 pipe, n—hollow round product conforming to the
3.1.1 class, n—a group of MAFs of a particular design with dimensional requirements for nominal pipe size (NPS) as
the dimensions proportional to pipe or tube outside diameters, tabulated in ASME B36.10M, Table 2.
made from the same material grade (or combination of grades), 3.1.11 rated pressure, n—the manufacturer’s recommended
for the same rated pressure, or for a rated pressure inversely in-service pressure assigned to the MAF (see 3.1.15).
proportional to the diameter. 3.1.12 separable MAF, n—a fitting whose joint(s) attach
3.1.1.1 Discussion—Class designation for MAF is assigned directly to the pipe or tube to join two or more pipes or tubes
based upon the rated pressure used to test the MAF design. or other MAFs in a combination of pipes or tubes and
components. Once assembled, the separable MAFs can be
disassembled and reassembled a multiple number of times.
5
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org.
3.1.12.1 Discussion—Some subcomponents of separable
6
Available from American Society of Mechanical Engineers (ASME), ASME MAFs may become permanently attached to the pipe or tube
International Headquarters, Two Park Ave., New York, NY 10016-5990, http:// without affecting the function of the joint.
www.asme.org.
7
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, 3.1.13 specimen, n—a prepared assembly consisting of a
PA 15096, http://www.sae.org. MAF assembled onto a preselected pipe or tube. The specimen

3
 F1387 − 23
is placed into a controlled environment and tested to determine permanently maintained by the force radially exerted by the
if the MAF assembly meets the requirements specified in the swaging rings onto the sealing interface.
test being performed. 4.2 The MAFs shall be made from one or more of the
3.1.14 test pressure, n—a selected pressure used during following material grades:
testing, which is based upon the rated pressure (see 3.1.13) of NOTE 2—When multiple components resulting in more than one
the MAF or pipe or tube, whichever is lower, times the factor material grade are specified within a MAF assembly, the combination of
specified for each test (that is, 1.25, 1.50, 2.00, 4.00, and so grades used shall be galvanically compatible.
forth). 4.2.1 Grade A—Carbon steel.
3.1.15 tube, n—hollow round product which is usually 4.2.2 Grade B—Stainless steel.
specified with respect to outside diameter and wall thickness. 4.2.3 Grade C—Nickel-copper.
4.2.4 Grade D—Copper-nickel.
4. Classification 4.2.5 Grade E—Brass.
4.2.6 Grade F—Nickel titanium.
4.1 MAFs are classified into the following design types:
4.3 The MAF rated pressure may be one of the following
NOTE 1—Each MAF type may consist of more than one material and classes:
class.
NOTE 3—The rated pressure may differ within the size range of a MAF
4.1.1 Type I: Radially Swaged MAF (Permanent)—A por- being qualified (see 3.1.1).
tion of the MAF diameter is reduced mechanically by means of
4.3.1 Class 1—1.38 MPa (200 psi) maximum.
an installation tool through radial compression to provide an
4.3.2 Class 2—2.76 MPa (400 psi) maximum.
intimate joint. The properly installed MAF has a circumferen-
4.3.3 Class 3—4.83 MPa (700 psi) maximum.
tial deformation of predetermined dimensions.
4.3.4 Class 4—6.90 MPa (1000 psi) maximum.
4.1.2 Type II: Flared MAF (Separable)—An assembly that 4.3.5 Class 5—10.34 MPa (1500 psi) maximum.
consists of a body, nut, and sleeve. The MAF is designed to 4.3.6 Class 6—13.79 MPa (2000 psi) maximum.
mate with a tube or other component which has been flared or
iTeh Standards
4.3.7 Class 7—20.69 MPa (3000 psi) maximum.
machined to a specific angle. The flared tube end is positioned 4.3.8 Class 8—25.86 MPa (3750 psi) maximum.
onto the MAF body cone or seat. The nut is then tightened to 4.3.9 Class 9—34.48 MPa (5000 psi) maximum.
mechanical retention. (https://standards.iteh.ai)
the body thread, thus providing a tube-to-MAF seal through 4.3.10 Class 10—41.37 MPa (6000 psi) maximum.
5. Ordering Information
Document Preview
4.1.3 Type III: Flareless (Bite-Type) MAF (Separable)—An
assembly having a ferrule, nut, and body. The ferrule penetrates 5.1 Orders for MAFs under this specification shall include
the outside of the tubing, thus providing a pressure seal and the following:
holding mechanism. 5.1.1 ASTM designation, title, number, and year of issue;
4.1.4 Type IV: Grip-Type MAF (Separable)—AnASTM F1387-23
assembly 5.1.2 Quantity of fittings (MAF);
https://standards.iteh.ai/catalog/standards/sist/6a833cdc-edc2-42e3-b216-29b69a6ba342/astm-f1387-23
having one or two ferrules that are compressed into the surface 5.1.3 Size, nominal pipe size (NPS), or outer diameter
of the tube. In the case of the two-ferrule MAF, the forward (OD);
ferrule provides the primary seal through radial compression 5.1.4 Type (I, II, III, IV, V, or VI);
around the outer diameter of the tube. The rear ferrule acts as 5.1.5 Material grade (see 4.2, 6.1, or Table 1);
the primary mechanical holding device. In the case of the 5.1.6 Class (see 3.1.1 and 4.3);
single-ferrule design, the ferrule is used to seal and act as the 5.1.7 MAF shape (that is, straight, elbow, cross, union,
primary mechanical holding device. coupling, and so forth) (see 3.1.3);
4.1.5 Type V: Shape Memory Alloy (SMA) MAF 5.1.8 Supplementary requirements, if any;
(Permanent)—Mechanically attached fittings that use SMA to 5.1.9 Other requirements agreed to between the purchaser
provide the mechanical force required to produce a metal-to- and the manufacturer; and
metal seal between the pipe or tube and the MAF. The 5.1.10 Inspection and acceptance of MAFs as agreed upon
metal-to-metal seal that is formed is a “live crimp” since the between the purchaser and the supplier (see Section 14).
pipe or tube and the SMA are in a state of dynamic equilibrium. 5.2 Optional Ordering Requirements:
The SMA maintains a permanent inward radial force on the 5.2.1 Certification (see Section 15), and
pipe or tube at all times. The MAF body itself may be 5.2.2 Special marking requirements (see Section 16 and
manufactured from a nonshape memory metal and used in S1.5).
conjunction with a driver made from SMA.
4.1.6 Type VI: Axially Swaged MAF (Permanent)— 6. Materials and Manufacture
Mechanically attached fittings that have machined swaging 6.1 MAF Material—The MAF material used may be as
rings telescopically “press fit” from the extremities toward the specified in Table 1 or may be other materials not specified in
center of the MAF body. An installation tool advances the Table 1, as agreed to between the manufacturer and the
swaging rings axially over the MAF body into a seated and purchaser.
locked position. The swage rings compress the MAF body onto 6.1.1 All types may be manufactured from wrought bars,
the pipe or tube forming a metal-to-metal seal. The seal is forgings, castings, pipe, or tube.

4
 F1387 − 23
TABLE 1 Material Specifications for MAFs
Nut/Ring
Type Straight Shape Sleeve or Ferrule Backup Washer Seal Material
(Body, Lock, Jam)

Grade A: Carbon Steel

A
I A108 A576 A108 ... ... AS3208/AS3209
II A108 A576 A576B A108 A109/A109M C
D
III A108 A576 A576 A108 A109/A109M
IV A108 A576B A576 A108 A109/A109M D

VI A108A A576E A108A ... ... D

Grade B: Stainless Steel

F G
I A312/A312M AMS-QQ-S-763 A312/A312MF ... ... AS3208/AS3209
II A479/A479M A182/A182M A479/A479MH A479/A479MH A167I C

III A479/A479M A182/A182M A479/A479MH A564/A564MJ A167I D

IV A479/A479M A182/A182M A479/A479M A276/A276M A167I D

A240/A240M
VI A312/A312MF A182/A182MK A312/A312MF ... ... D

Grade C: Nickel Copper

II B164 B564 B164 B164 A167I C

III B164 A564/A564M B164 B164 A167I D

IV B164L B564L B164L B164L A167I D

QQ-N-286

Grade D: Copper Nickel

I MIL-C-15726M B369/B369MM MIL-C-15726M ... ... AS3208/AS3209

II B122/B122M B122/B122M B122/B122M B122/B122M A167I C

iTeh Standards
III B122/B122M B122/B122M B122/B122M A564/A564MI A167I D

VI MIL-C-15726M B369/B369MM MIL-C-15726M ... ... D

Grade E: Brass

II
IV
B16/B16M
B16/B16MP
(https://standards.iteh.ai)
B124/B124M
B124/B124MP
B16/B16MN
B16/B16MP
B111/B111MO
B16/B16MP
...
...
C
D

Document Preview Grade F: Nickel Titanium

Q Q Q D
V ... ...

ASTM F1387-23
A
Alternate material in conformance to Specification A106/A106M (Grade B) may be used.
B
Alternate material in conformance to Specification A108 may be used.
C
D
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When required by the MAF design, O-rings in accordance with SAE J515 shall be used to connect the MAF end.
No O-rings used to connect the MAF end.
E
Alternate material in conformance to Specification A234/A234M may be used.
F
Alternate material in conformance to MIL-P-24691/3 may be used.
G
304, 304L or 316, 316L material may be used.
H
Alternate material in conformance to Specification A276/A276M may be used.
I
Grade 302.
J
Alternate material in conformance to AMS 5643 may be used.
K
Alternate material in conformance to Specification A403/A403M may be used.
L
Alternate material in conformance to QQ-N-281 may be used.
M
Alternate material in conformance to MIL-T-16420 may be used.
N
Alternate material in conformance to Specification B21/B21M may be used.
O
Alternate material in conformance to Specification B371/B371M may be used.
P
Alternate material in conformance to Specifications B36/B36M, B121/B121M, or B124/B124M may be used.
Q
In accordance with the manufacturer’s specification.

6.1.2 Flow of Grain—MAFs machined from hot- or cold- 6.2.1 The manufacturer is encouraged to use materials
drawn bars shall have their longitudinal axis parallel to the produced from recovered materials to the maximum extent
longitudinal axis of the bar with at least the center one third of practicable without jeopardizing the intended use. Used or
the bar removed during the manufacturing process unless rebuilt products shall not be used.
testing shows the center material to be free of injurious defects.
NOTE 4—The term “recovered materials” is interpreted as those
6.2 Material Quality—The material shall be of such quality materials that have been collected or recovered from solid waste and
and purity that the finished product shall have the properties reprocessed to become a source of raw material, as opposed to extra virgin
and characteristics to meet the performance requirements of raw materials.
this specification.

5
 F1387 − 23
6.3 Seal Materials—Seals used with MAFs shall be as grades), and class. The pipe or tube selected for the technical
specified in Table 1. qualification to this specification shall meet the requirement
6.4 Surface Applications and Coatings—Surface applica- specified in 7.3.4. Technical qualification of the MAF assembly
tions and coatings, if applicable, shall be applied and tested in shall be based upon successful completion of all required
accordance with the requirements specified in Table 2. testing. Each MAF design is only qualified for use with the
pipe or tube material and minimum to maximum wall thickness
6.5 MAF Fabrication—MAFs fabricated from two or more tested or extended by interpolation (see 7.3.2 and 7.3.3).
parts may be welded. The use of brazing or soldering is not 7.3.1 Except as required by Annex A11 (Mercurous Nitrate
permitted. Test), all MAFs tested shall be comprised of an equal number
6.5.1 Welding procedure qualification and welding operator of specimens from the smallest and largest sizes within the size
performance qualification shall be in accordance with ASME range of the MAF type, grade, and class being tested.
Boiler and Pressure Vessel Code, Section IX. Welding process
7.3.1.1 Test one or more intermediate sizes if the ratio of the
shall be in accordance with NAVSEA Tech Pub S9074-AR-
minimum and maximum pipe or tube outside diameter to be
GIB-010/278. Welded MAFs shall be tested in accordance with
tested is equal to or more than five.
the requirements as specified in 13.4.3.
6.5.2 The welding procedure qualification test shall dupli- 7.3.2 Through reasonable interpolations between the MAF
cate the joint configuration to be used in production. sizes tested, all other sizes of MAFs within the same type,
grade (or combination of grades), and class, will be considered
6.6 Processing Stainless Steel Forgings—Austenitic stain- acceptable if the MAF specimens pass all of the testing
less steel components manufactured by hot forge or other requirements specified by the purchaser. Extrapolation is not
sensitizing processes shall be solution annealed and certified acceptable.
free of intergranular precipitation. Practices A262 shall be used
7.3.3 Acceptance of tees, elbows, and other shapes within
to evaluate carbide precipitation in stainless steels.
the same class, may be accomplished by parametric analysis
7. Performance Requirements (see 7.3.3.1), as agreed to between the manufacturer and the
purchaser based on the acceptance of couplings.
7.1 Testing Requirements—MAFs shall be subjected to the
iTeh Standards
standard performance tests specified in 13.1 and Table 3. The
tests are described in the annexes. Supplementary tests speci-
7.3.3.1 If tees, elbows, and other shapes are made from a
different raw material form than the coupling (for example,
tees and elbows manufactured from castings versus couplings
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fied in 13.2 and Table S1.1 shall be performed when invoked in
the order or contract by the purchaser.
manufactured from solid bar or round tube), this alternate
material form shall undergo the same test regimen as the
7.1.1 These tests shall be repeated any time changes are
Document Preview
made in the design, material, or manufacturing process, which
in the opinion of the purchaser, may degrade the performance
coupling. Once this is complete, parametric analysis may be
used to qualify the remainder of the shapes as agreed to
between the purchaser and the manufacturer.
of MAFs.
7.3.4 Recommended pipe or tube for use with MAFs may be
ASTM F1387-23
7.2 Intermixing of MAF Subcomponents—The intermixing qualified throughout its wall thickness range, when pipe or tube
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the purchaser of subcomponents of the same design, but of of a minimum and maximum wall thickness are used within the
different brands or trade names, is not permitted unless test specimens being qualified.
specifically authorized by the manufacturer. 7.3.5 The MAFs may incorporate non-MAF features (that
7.2.1 When subcomponents of different brands, trade is, bolted flanges, and so forth). Those non-MAF features that
names, or manufacturers are used, the manufacturer testing the are part of a MAF configuration shall meet the current issue of
MAF design shall specify this information in the test report. existing military and commercial documents (as applicable).
7.3 Qualification Requirements—MAFs shall be tested us- Qualification of the non-MAF features are not within the scope
ing specimens of the same type, grade (or combination of of this specification.

TABLE 2 Finishes and Coatings Applied to MAFsA

Material Grade Type of Finish or Coating Applicable Document Test Requirement Applicable Document Test Results

A Cadmium CoatingB,C B766D Salt Spray (Fog) B117 72 h before red rust
A B696D

A Zinc CoatingB Type II, B633 Salt Spray (Fog) B117 72 h before red rust
Surface Condition 1

A Phosphate CoatB Class 1 MIL-DTL-16232 Salt Spray (Fog) B117 32 h before red rust

B Passivation A380/A380M Copper Sulphate Test AMS-STD-753 pass copper sulphate test
A967 Method 102
A
Other finishes or coatings not specified herein may be used upon mutual agreement between the manufacturer and the purchaser.
B
Coating shall be a minimum of 0.0002 followed by a chromate treatment or with a phosphate coating with oil finish.
C
Cadmium plating shall not be used on MAFs intended for use on U.S. Navy vessels.
D
SAE Specification AMS-QQ-P-416 plating may also be used.

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 F1387 − 23
TABLE 3 Specimen Geometry and Testing RequirementsA
Description of Test Number of Specimens Applicability of Test
Permanent Separable Permanent Separable
Examination of specimen 22 28 yes yes
Pneumatic proof testB 22 28 yes yes
Hydrostatic proof testB 22 28 yes yes
Impulse testC 6 6D yes yes
Flexure fatigue testC 6 6D yes yes
Tensile test 6 6 yes yes
Burst testC,E 4 4 yes yes
Repeat assembly testC ... D
no yes
Rotary flexure testC ... 6 no yes
Mercurous nitrate test 2 2 . . .F . . .F
A
Number of specimens does not include any specimens for supplementary tests (see Table S1.1). When supplementary requirements in S1.3.8 are invoked, the number
of specimens for all tests (annex and supplementary) shall be as specified in the supplementary requirements section.
B
This test is optional to whether it is performed before all other testing.
C
Specimens can be reused for other primary tests as long as all requirements herein are complied with for each test.
D
A minimum of 50 % of specimens selected for impulse and flexure fatigue testing shall be subjected to repeat assembly testing.
E
When the Supplementary Requirements of this specification are invoked, burst test specimens shall be comprised only with passed specimens from elevated temperature
soak (see S3) and shock test (see S6). When the Supplementary Requirements are not invoked, new or passed specimens from other tests in the annexes can be used.
In any event, the minimum quantity of specimens used for this test shall be as specified.
F
Two MAFs from each size and shape made from either copper zinc alloys containing more than 15 % zinc or copper-aluminum alloys shall be tested. These specimens
shall be assembled onto pipe or tube, but do not have to be capped for pneumatic and hydrostatic testing before performing the mercurous nitrate test.

7.4 Test Report—Upon completion of testing, a test report MIL-PRF-7808, MIL-PRF-17331, or MIL-PRF-83282 may be
shall be written and maintained on file during the life cycle of used without affecting the validity of the test.
the design. A copy of this report shall be made available upon 7.6.4 Temperature—Unless otherwise specified, the allow-
request from the purchasing activity.
iTeh Standards
7.4.1 A failure during testing shall be analyzed and the
able tolerance for temperature applied to the test specimen
during testing shall be 65 °C (610 °F).

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failure analysis (see 11.3.1 and 11.3.2) and corrective action
shall be included in the test report.
7.7 Pass or Fail Criteria—Pass or fail criteria for each test
shall be based upon meeting or exceeding the performance
7.4.2 A retest as specified in Section 11 may be allowed
Document Preview
requirements specified in each test.
when failure of the original assembly occurs during testing.
8. Dimensions
When retesting is permitted, the failure analysis and corrective
action shall be included in the test report as specified in 7.4.1. 8.1 MAF Dimensions:
7.5 Test Equipment and Inspection Facilities—The ASTM F1387-23
manu- 8.1.1 Type I MAF dimensions shall be as specified by the
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facturer shall ensure that test equipment and inspection facili- manufacturer.
ties of sufficient accuracy, quality, and quantity are established 8.1.2 Types II and III MAF dimensions shall be as specified
and maintained to permit the performance of required inspec- in MIL-DTL-18866 or SAE J514 or as agreed to between the
tions. manufacturer and the purchaser.
7.5.1 Calibration System Requirements—The manufacturer 8.1.3 Type IV MAF dimensions shall be as specified by the
shall maintain a calibration system for all measuring and test manufacturer.
equipment (M & TE) in accordance with ANSI/NCSL Z540 8.1.4 Type V MAF dimensions shall be as specified by the
with traceability to the National Institute of Standards and manufacturer.
Technology (NIST). 8.1.5 Type VI MAF dimensions shall be as specified by the
7.5.1.1 Accuracy of the M & TE used to measure allowable manufacturer.
variables during testing shall be within one third of the
tolerances permitted (see 7.6). 9. Workmanship, Finish, and Appearance
7.6 Test Conditions—Unless otherwise specified in the test, 9.1 Machined Surfaces—Machined surfaces shall be free
the following tolerances shall be used to control conditions of from burrs, cracks, laps, or seams which would affect the
the tests specified in the annexes: suitability for the intended service.
7.6.1 Ambient Conditions—When ambient is specified, stan- 9.1.1 All machined surfaces shall be 3.2-µm roughness,
dard ambient conditions shall be maintained at 25 °C 6 10 °C average (R a) (125-µin. Ra) as specified in ASME B46.1 or
(77 °F 6 18 °F). duplicate of that qualified.
7.6.2 Pressure—Unless otherwise specified, the tolerance 9.1.1.1 External surfaces that do not affect the overall
for the internal pressure applied to the test specimen during function of MAFs shall be excluded from the requirement
testing shall be maintained at 65 %. specified in 9.1.1.
7.6.3 Test Fluids—Unless otherwise specified, the test fluids 9.2 Unmachined Surfaces—Unmachined surfaces, such as
used in the testing of MAF shall include those fluids specified forging or casting surfaces and bar stock flats, shall be free
within the test. Water and other fluids such as SAE Grade 10W, from scale, blisters, fins, folds, seams, laps, segregations, or

7
 F1387 − 23
cracks which may be injurious to personnel or equipment or 11.3.1 If the failure is determined to be design related, the
affect MAF performance. manufacturer shall redesign the MAF and start all tests from
the beginning. The requirements in 11.3.2 shall not apply to
10. Sampling for Testing redesigned MAF.
10.1 Inspection Sampling of Raw Material—Except when 11.3.2 If the failure is determined to be unrelated to the
specified herein, the number of samples required for inspection design, the test specimen shall be rerun. A replacement test
of raw materials for conformance of products during manufac- specimen shall be prepared in accordance with the require-
turing and processing shall be in accordance with established ments in 11.2 and Section 12.
quality assurance procedures maintained by the manufacturer 11.3.3 If the failure cannot be determined to be either design
and approved by the purchaser. related or not design related, the manufacturer shall test three
additional penalty specimens. The requirements specified in
10.2 In-Process Inspection Sampling of MAFs—Inspection 11.3.2 shall apply.
sampling plans of MAFs being manufactured or processed
shall be mutually agreed upon between the manufacturer and 11.4 Penalty Run Specimen Preparation—Penalty run
the purchaser. MIL-STD-1916 or ANSI/ASQ Z1.4 shall be specimens shall be prepared when MAF has failed any of the
used when specified in the purchase order or contract. Level of tests specified in the annexes.
inspection and acceptable quality level (AQL) shall be in 11.4.1 The MAF used for penalty runs shall be of the same
accordance with the manufacturer’s quality assurance proce- type, grade, and class as the failed MAF being replaced.
dures. 11.4.2 The pipe or tube used in penalty runs shall be of the
same material (including form and condition), outer diameter,
10.3 Lot Acceptance—Lot acceptance sampling plans shall
and wall thicknesses as the pipe or tube being replaced.
be mutually agreed upon between the manufacturer and the
11.4.3 Preparation of the penalty run specimens shall be in
purchaser. MIL-STD-1916 or ANSI/ASQ Z1.4 shall be used
accordance with Section 12.
when specified in the purchase order or contract.
11.4.4 Penalty run specimens shall be identified in accor-
10.4 Sampling for Inspection of Type III Ferrules—A ran- dance with 12.3 and 11.4.5.
iTeh Standards
dom sample of ferrules shall be selected from each lot in
accordance with MIL-STD-1916 or ANSI/ASQ Z1.4, Special
11.4.5 In addition to the part number and test specimen
number, a designator shall be placed after the test specimen

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Inspection Level S-2, AQL of 2.5, and tested in accordance number which would allow the specimen to be identified as a
with 13.4.1. Other inspection or sampling plans may be used penalty run specimen. The method used to identify penalty run
upon mutual agreement between the manufacturer and the specimens shall be at the manufacturer’s option.
purchaser.
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10.4.1 A minimum of five ferrules shall be randomly
12. Specimen Preparation
selected from each lot and subjected to the testing specified in
13.4.2. 12.1 Specimen preparation and installation of MAFs on
ASTM F1387-23
appropriate testing apparatus shall be in accordance with the
10.5 Sampling for Inspection of Fabricated MAFs—A mini-
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manufacturer’s recommended procedures.
mum of four samples shall be selected at random from each lot 12.1.1 Permanent MAFs shall be assembled at the minimum
of welded products and subjected to the tests specified in allowable insertion depth permitted by the manufacturer’s
13.4.3. recommended procedure.
12.1.2 Separable MAFs shall be assembled using the mini-
11. Number of Tests and Retests mum value (that is, torque, nut rotation, and so forth) permitted
11.1 Number of Test Specimens—The tests used to qualify by the manufacturer’s recommended procedure.
MAFs and the number of specimens required for each test shall 12.2 Assembly of Specimens—MAFs qualified under the
be as specified in Table 3. requirements of this specification shall be tested and qualified
11.2 Replacement of Test Specimens—When untested speci- as a completed assembly. The acceptance of similar, but
mens are rejected as a result of overtightening, inferior different, MAF designs shall not permit the intermixing of their
workmanship or materials, or assembly, the specimens shall be subcomponents such as sleeves, nuts, and ferrules.
dispositioned in accordance with the manufacturer’s quality 12.2.1 Test specimens used in testing shall be assembled
assurance procedures. using a MAF of a single type, grade (or combination of
11.2.1 The original unique numbers assigned in accordance grades), and pipe or tube material.
with 12.3.1 shall be recorded in the test report along with the 12.2.2 The wall thickness and outer diameter size of the
reason for rejection. pipe or tube shall be selected in accordance with the MAF sizes
11.2.1.1 New test specimens with MAFs of the same type, (see 7.3.4) being qualified.
grade, and class, and pipe or tube of the same outside diameter 12.2.3 The test specimens shall be assembled using the
and wall thickness shall be prepared in accordance with specimen geometry specified in Fig. 1.
Section 12.
12.3 Identification of Test Specimens—Each test specimen
11.3 Penalty Runs—In the event of a test failure, the shall be identified with a unique number to provide traceability
manufacturer shall proceed with one of the following options: back to the test records.

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 F1387 − 23

iTeh Standards
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FIG. 1 Typical Specimen Geometries

Document
12.3.1 Identification of test specimens shall be permanent. Preview Thermal Cycling Test
Elevated Temperature Soak Test
S2
S3
In those cases in which size or design does not permit
Stress-Corrosion Test S4
permanent markings, tagging or bagging may be used.
ASTM
12.3.2 When, as a result of testing, a test specimen is F1387-23 Torsion Test
High-Impact Shock Test
S5
S6
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sectioned into two or more pieces, the identification method Fire Test
Vibration Test
S7
S8
shall be as specified in 12.3.1.
13.3 Certification of Test Results—If certified test results are
13. Test Methods required, a certification shall be provided to the purchaser as
13.1 Standard Qualification Tests—All tests used to qualify specified in the contract or purchase order.
MAFs shall be as specified in the annexes. The following 13.4 In-Process Inspection Tests—The following tests shall
primary tests are described: be performed by the manufacturer in accordance with in-house
Name of Test Section practices and when specified in the contract or purchase order:
13.4.1 Metallographically prepare, microexamine, and test
Performance Tests for MAFs Annex A1
Examination of Specimen Annex A2 for hardness and microstructural conformance to the manufac-
Pneumatic Proof Test Annex A3 turer’s appropriate specification a random sample of Type III
Hydrostatic Proof Test Annex A4 ferrules, as specified in 10.4.1. An appropriate specification is
Impulse Test Annex A5
Flexure Fatigue Test Annex A6 defined as the documented procedures that the manufacturer
Tensile Test Annex A7 uses on a continuing basis to produce ferrules. Such ferrules
Hydrostatic Burst Test Annex A8 shall be of the same quality as those used in the assemblies that
Repeated Assembly Test Annex A9
Rotary Flexure Test Annex A10 were previously tested and found to satisfy the performance
Mercurous Nitrate Test Annex A11 requirements of this specification.
13.2 Supplementary Tests—When one or more of the 13.4.2 Randomly select a minimum of five Type III ferrules
supplementary requirements are requested by the purchaser from each lot as specified in 10.5 and test for cut bite quality.
(see 1.2), the following applicable test(s) shall also be per- 13.4.2.1 Preset the Type III ferrules onto tubing as specified
formed: in 13.4.2.2. After disassembly, drive back each ferrule to
Name of Test Section expose the ring cut for examination. The cut bite shall
completely encircle the periphery of the tube. The cut bite shall
General Requirements S1 be clean, smooth, and uniform. A jagged irregular cut bite is

9
 F1387 − 23
unacceptable. There shall be no longitudinal or circumferential 14.3 Quality Conformance Inspection—MAFs shall be vi-
cracks on the ferrule before driving it back. sually and dimensionally examined to verify compliance with
13.4.2.2 Use Type 304 tubing in accordance with Specifi- the appropriate drawings. Quality conformance inspection
cations A213/A213M, A249/A249M, or A269/A269M for shall be performed on each lot of MAFs produced under this
testing corrosion-resistant steel MAFs. Use SAE 1010 tubing specification.
to test carbon steel MAFs. The tubing materials as specified 14.3.1 The inspection lot of MAFs shall include MAFs of
will assure consistent results of testing. Preset Type III ferrules the same size and shape manufactured under essentially the
onto the tubing in accordance with the manufacturer’s recom- same conditions from the same lot of material and submitted
mended procedures using either a presetting machine, preset-
for inspection at one time.
ting tool, or the MAF.
13.4.2.3 When the Type III ferrules are manufactured from 14.4 Process Control Inspection—MAFs shall be inspected
materials other than those specified in 13.4.2.2, conduct the test throughout the entire manufacturing and processing cycle.
using tubing material as recommended by the manufacturer. Methods of inspection shall be in compliance with the manu-
13.4.3 Fracture test a minimum of four MAFs selected at facturer’s quality assurance procedures.
random from each lot of welded MAFs as specified in 13.4.3.1
and then either crush test in accordance with 13.4.3.2 or 14.5 Inspection Records—Inspection records shall be main-
macroexamine in accordance with 13.4.3.3. tained by the manufacturer. The length of time on file shall be
13.4.3.1 Test two MAFs. Cut each MAF into two or more in accordance with the manufacturer’s quality assurance pro-
sections. Cut the sections so that the weld is perpendicular to cedures.
the longitudinal axis of the section. The total width of the 14.6 Performance Testing Records—The manufacturer shall
sections taken from each MAF shall be equal to or exceed one maintain a record of all performance tests throughout the life of
fourth of the circumference of the MAF. Remove all weld the MAF design.
flashing. Load each section laterally in such a way that the root
14.6.1 The original test specimens, as well as replacement
of the weld is in tension. Bend the section until it fractures or
or penalty run specimens, used in performance testing to meet
is bent 90°. If the specimen fractures, the fractured surface
iTeh Standards
shall show no evidence of preexisting cracks or incomplete
fusion, and the sum of the lengths of inclusions and porosity
qualification shall be maintained by the manufacturer for a
minimum of two years.

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visible on the fractured surface shall not exceed 10 % of the 14.6.2 Inspection records relating to the performance tests
total area. Cracking or tearing of the parent material is shall be maintained in accordance with 14.5.
acceptable.
Document Preview
13.4.3.2 Two MAFs shall be tested. Remove all weld
flashing. Position each MAF between two parallel plates in a
15. Certification
15.1 Certification of Testing or Inspection—When requested
manual or hydraulic press, or between the jaws of a multiple-
by the purchaser, the manufacturer shall supply written certi-
jaw hydraulic press. The weld shall be located 3.2 mm ASTM F1387-23
(1⁄8 in.)
fications that the MAF has been tested and qualified in
from the face of the plates or jaws. Flatten the MAF against
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itself between the parallel plates or crush the MAF to within
accordance with this specification.
50 % of its original diameter between the multiple jaws. There 15.2 Certification of Raw Material—A certificate of com-
shall be no indication of cracking or tearing in the weld joints. pliance or mill certificate shall be obtained from the material
Cracking or tearing of parent material is acceptable. supplier. This certificate shall state that all applicable require-
13.4.3.3 Test two MAFs. Take a cross section of the weld ments of the raw material are met. As a minimum, the material
from each MAF. Smooth and etch one face of each cross specification shall specify the chemical and mechanical re-
section to give a clear definition of the weld metal and quirements of the material.
heat-affected zone. When examined, the weld and the heat-
affected zone shall show complete fusion and freedom from 16. Product Marking
cracks.
16.1 Product Marking—Each MAF shall be marked with
14. Inspection the manufacturer’s name or trademark, size, and material
(material marking is not required for Type V MAF). When
14.1 Terms of Inspection—Unless otherwise specified in the
shape or size does not permit inclusion of all required
contract or purchase order, the manufacturer is responsible for
markings, the information may be omitted in the reverse order
the performance of all inspection requirements (examination
presented.
and tests) specified herein.
16.1.1 When MAFs are comprised of multiple components
14.2 Raw Material Inspection—Each lot of raw material that are assembled, the marking methods used to identify the
used to produce MAFs in accordance with this specification assembly (and each of its components) shall be as agreed to
shall be inspected for conformance to the applicable material between the manufacturer and the purchaser.
specification. A lot of raw material shall consist of bars, pipe,
tube, forgings, or castings of the same heat, produced at 16.2 Additional Markings—When specified in the contract
essentially the same time and submitted for inspection at the or purchaser order, additional markings other than those
same time. specified shall be applied.

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 F1387 − 23
17. Keywords
17.1 axially swaged; bite-type; elastic strain preload (esp);
fittings; flared; flareless; grip type; mechanically attached
fittings (MAFs); piping; radially swaged; shape memory alloy
(SMA); tubing

SUPPLEMENTARY REQUIREMENTS

The following supplementary requirements shall apply only when specified in part or whole by the
purchaser in the contract or purchase order.

S1. GENERAL REQUIREMENTS

S1.1 Scope S1.1.3.3 Other pipe or tube sizes, with supporting data, may
S1.1.1 This section covers the general requirements that, be submitted to the purchaser for evaluation and approval.
unless otherwise specified, apply to the annexes or this section S1.1.4 The following supplementary tests listed herein are
whenever invoked individually or collectively by the purchaser as follows:
of MAFs in the contract or purchase order. The testing Test Section
requirements specified herein are applicable to all the tests
Thermal Cycling Test S2
described in Sections S2 through S8 (see Table S1.1). The Elevated Temperature Soak Test S3

iTeh Standards
requirements covered herein are outlined as follows: Stress-Corrosion Test S4
Torsion Test S5
S1.3 Testing Requirements High Impact Shock Test S6
S1.4 Quality Assurance Requirements

S1.1.2 Cadmium plating (https://standards.iteh.ai)

Fire Test S7
S1.5 Product Marking Requirements Vibration Test S8
shall not be used on MAFs in- S1.1.5 The sections listed below from the main body of this
S1.1.3 This section is applicable toDocument
MAFs that are designed Preview
tended for use on U.S. Navy vessels. specification apply to the test specimens used to perform the
tests specified in S1.5 (see S1.8). MAFs shall have met the
for the following pipe or tube sizes: requirements of Annex A1 and Annex A2 before performing
S1.1.3.1 This supplementary section is applicable to MAFs any test, unless otherwise specified herein.
suitable for pipe outside diameters for NPS 3.2 mmASTM F1387-23
(1⁄8 in.)
Title Section
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through 63.5 mm (21⁄2 in.).
S1.1.3.2 This supplementary section is applicable to MAFs Scope 1
suitable for tube outside diameters from 6.4 mm (0.250 in.) to Referenced Documents 2
Terminology 3
73.0 mm (2.875 in.). Classification 4
Materials and Manufacture 6
TABLE S1.1 Supplementary TestsA Performance Requirements 7
Description of Test Number of SpecimensB Workmanship, Finish, and Appearance 9
Number of Tests and Retests 11
Examination of specimen (Annex A2) 40 Specimen Preparation 12
Pneumatic proof test (Annex A3) 40 Test Methods 13
Hydrostatic proof test (Annex A4)C 40 Inspection 14
Thermal cycling test (S2)D,E 10 Certification 15
Elevated temperature soak test (S3)C 5 Performance Tests for MAFs Annex A1
Stress-corrosion test (S4) 5 Examination of Specimen Annex A2
Torsion test (S5) 5
High impact shock test (S6) 5 S1.1.6 Unless otherwise specified, the requirements speci-
Fire test (S7)C 5
Vibration test (S8)D 5
fied in the main body and Annex A1 and Annex A2 of this
A
specification shall apply.
Passed specimens shall be used for burst testing (see Annex A8).
B
The number of specimens shown is the minimum amount required for each test S1.1.6.1 In the event of a conflict between this supplement
per family of MAF. The number of specimens may increase when various pipe or and the requirements specified in the main body of this
tube grades, forms, conditions, and outer diameter wall thickness combinations
are tested, unless exempted parametrically (see 7.3). The total minimum amount specification and Annex A1 and Annex A2, or both, the
of specimens required for all tests (including the annexes) shall be as specified in requirements specified herein shall take precedence, unless
S1.3.8. otherwise invoked in the contract or purchase order by the
C
Fire test specimens shall be hydrostatically proof tested using water only.
D
Specimens may be reused for other primary tests as long as all requirements purchaser.
herein are complied with for each test (see S1.1.9). S1.1.7 Before beginning performance testing, the manufac-
E
An equal number of specimens (four minimum) shall be used for the high- and
low-temperature cycle test. turer shall obtain approval from the purchaser of the test plan
to be used. The plan shall include the following information:

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 F1387 − 23
S1.1.7.1 A matrix showing the MAF grade(s) (or different S1.3.2 The test MAFs shall be of the same base material as
combination(s) of grades) (see 4.2) and MAF class(es) (see the pipe or tube. Other combinations of materials, approved for
4.3) to be qualified, use by the purchaser, must be shown to be galvanically
S1.1.7.2 MAF sizes selected to qualify every size within its compatible, or in accordance with MIL-STD-889.
range (see S1.1.3), S1.3.2.1 MAFs shall be shown to meet the requirements of
S1.1.7.3 Compatible pipe or tube materials to be in assem- this specification over the full range of pipe or tube tolerances
bly with the MAFs to be tested (see Table S1.2), (see S1.3.3.1) either experimentally or by parametric.
S1.1.7.4 Pipe or tube wall thicknesses and sizes selected to S1.3.3 Pipe or tube materials used with MAFs shall con-
qualify the pipe or tube throughout its range (see 7.3.5), form to the specifications listed in Table S1.2.
S1.1.7.5 The manufacturer’s recommended procedure cov- S1.3.3.1 Pipe or tube tolerances shall be in accordance with
ering the assembly of the MAFs onto pipe or tube (see 12.1), the requirements specified in Table S1.2.
and S1.3.3.2 In no case shall the pipe or tube used for testing be
S1.1.7.6 Test fluids used for each test (see 7.6.3). machined or otherwise changed from its original mechanical or
S1.1.8 After verification, the purchaser shall approve the chemical properties unless otherwise specified in the manufac-
matrix or specify any additional tests required for each MAF turer’s installation instructions.
family for the manufacturer to include in the program.
S1.3.3.3 The cut pipe or tube ends may be deburred, but not
S1.2 Significance and Use tapered or otherwise reduced, below the minimum wall thick-
ness.
S1.2.1 The significance of this section allows the purchaser S1.3.4 Strain gauges (as required) shall be placed at a
of MAFs to invoke those general, testing, or quality assurance distance not to exceed 4.6 mm (0.18 in.) from the end(s) of the
requirements individually or collectively to meet their existing MAF pipe or tube joint (see Fig. 1).
requirements. The purchaser may use this section as a guide to
S1.3.5 The test specimens shall be marked using the same
make out an agreement with the manufacturer to fulfill their
methods which will be applied to MAFs sold subsequent to
requirements for MAFs.
qualification.
S1.3 Testing Requirements iTeh Standards
S1.3.1 MAF test specimens shall be selected for qualifica-
S1.3.5.1 All test specimens shall be identified in accordance
with the requirements specified in 12.3.

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S1.3.6 A test specimen shall consist of one or several pipe(s)
tion in accordance with the requirements specified herein and or tube(s) joined to MAFs.
in 7.3.
S1.3.6.1 MAFs installed on the test apparatus shall be in
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S1.3.1.1 Each and every pipe or tube size (both outside
diameter and wall thickness) and each and every material
accordance with the manufacturer’s recommended procedures
as approved by the purchaser. No other means of joining the
combination of both pipe or tube (including annealed and
test connector to the pipe shall be permitted.
drawn conditions) and MAFs may be qualified in accordance
ASTM
with this specification. If the manufacturer can demonstrate by F1387-23S1.3.6.2 Unless otherwise specified in the individual test
(see S7), the specimen geometry (Fig. 1) shall be no less than
https://standards.iteh.ai/catalog/standards/sist/6a833cdc-edc2-42e3-b216-29b69a6ba342/astm-f1387-23
parametric or test data that some tests are not necessary, the
five pipe or tube diameters (outside diameter) long on the end
purchaser may exempt the manufacturer from the test require-
ment on a case-by-case basis. of the MAFs being tested.
S1.3.6.3 After approval of the test plan (see S1.1.7), the test
specimens shall be assembled in accordance with the require-
ments specified in 12.2.
TABLE S1.2 Pipe or Tube Material, Size, and Tolerances
S1.3.7 The minimum amount of specimens required for
Material each supplementary test shall be as specified in Table S1.1 (see
Material Type Material Size Material Tolerance
Specification
S1.3.8). A family of MAFs shall consist of a manufacturer’s
Carbon steel MIL-P-24691/1 ASME B36.10M A530/A530M
A53/A53M A450/A450M single combination of: pressure rating (class), design (type),
A106/A106M and material (grade) including form and condition. A family
requires tests as follows:
Chromium MIL-P-24691/2 ASME B36.10M A999/A999M
molybdenum A335/A335M S1.3.7.1 Test each MAF shape. Shapes may be test ex-
empted only if it can be shown to the purchaser’s satisfaction
Stainless steel MIL-P-24691/3 ASME B36.10M A999/A999M
A213/A213M A1016/A1016M
that they are equivalent to those shapes tested.
A269/A269M S1.3.7.2 Test the range of MAF sizes, including the smallest
A312/A312M and largest. Test one or more intermediate sizes if the ratio of
MIL-T-8606 SAE AMS 2243
the minimum to the maximum pipe or tube outside diameter to
Copper-nickel MIL-T-16420 MIL-T-16420 MIL-T-16420 be tested is equal to or more than ten.
Nickel-copper MIL-T-1368 MIL-T-1368 MIL-T-1368
S1.3.7.3 Any nonproportional MAF sizes shall be tested
unless they can be shown parametrically to be equivalent to the
Copper MIL-T-24107 MIL-T-24107 B251/B251M sizes tested.
B75/B75M B251/B251M
B88 S1.3.7.4 Test each pipe or tube material for all material
conditions of intended use (that is, annealed and drawn).

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