LISI AEROSPACE – Please refer to Central Documentation Website to check validity

HI-SHEAR Corporation, USA Design Holder CAGE No. 73197

S
AEROSPACE a LISI AEROSPACE Company
For the current list of licensed manufacturers, please visit the
LISI AEROSPACE website at:
hi-shear corporation
2600 SKYPARK DRIVE, TORRANCE, CALIFORNIA 90509 U.S.A.
HTTP://WWW.LISI-AEROSPACE.COM/LICENSES

THREAD PER
AS8879 THIS AREA PROVIDED WITH A PREVAILING
WASHER TORQUE LOCKING FEATURE

A B A1
P
DIA DIA DIA

X X1
L1 W
L2
HEX
L L3

DASH PIN A A1 B L L1 L2 L3 P W X X1 UTS TORQUE-OFF

NO. NOM THREAD DIA DIA DIA (REF) (REF) (REF) (REF) HEX (REF) (REF) LBS. INCH-
DIA (REF) MIN POUNDS
.1640-32 .287 .179 .447 .314
5 5/32 UNJC-3B .320 .265 .280 .460 .344 .118 .138 3,050 30-40
.283 .166 .427 .302
.1900-32 .307 .205 .457 .314
6 3/16 UNJF-3B .340 .275 .290 .470 .344 .118 .138 4,000 40-50
.303 .192 .437 .302
.2500-28 .413 .265 .552 .346
8 1/4 UNJF-3B .445 .340 .355 .565 .380 .127 .147 7,500 115-130
.407 .252 .532 .332
.3125-24 .518 .330 .672 .440
10 5/16 UNJF-3B .550 .430 .445 .685 .484 .139 .164 11,750 200-250
.512 .314 .652 .425
.3750-24 .628 .393 .744 .503
12 3/8 UNJF-3B .660 .475 .490 .755 .557 .139 .167 18,000 360-420
.622 .376 .724 .488
.4375-20 .733 .456 .862 .753
14 7/16 UNJF-3B .765 .560 .575 .875 .840 .157 .185 23,750 525-675
.727 .439 .842 .736
.5000-20 .848 .519 .942 .878
16 1/2 UNJF-3B .880 .610 .625 .955 .970 .157 .185 30,000 725-1000
.842 .501 .922 .861
.5625-18 .915 .582 1.029 .878
18 9/16 UNJF-3B .910 .670 .685 1.042 .970 .171 .200 39,000 1000-1250
.905 .570 1.009 .861
.6250-18 .995 .650 1.123 1.003
20 5/8 UNJF-3B 1.040 .735 .750 1.136 1.120 .171 .200 49,000 1350-1550
.985 .634 1.103 .986
.7500-16 1.120 .776 1.371 1.128
24 3/4 UNJF-3B 1.140 .940 .955 1.384 1.240 .188 .215 70,000 1900-2200
1.110 .762 1.351 1.110
.8750-14 1.345 .902 1.575 1.380
28 7/8 UNJF-3B 1.365 1.060 1.075 1.584 1.520 .205 .240 95,000 3200-3600
1.335 .887 1.545 1.356
1.0000-12 1.490 1.030 1.840 1.504
32 1 UNJF-3B 1.510 1.225 1.240 1.849 1.650 .229 .265 124,000 4500-5000
1.480 1.015 1.810 1.480

NOTES: 1. Go thread gage penetration shall be 3/4 of one revolution minimum.

2. Dimensions are in inches and apply after plating and before application of lubricants.
3. Use HL273 for oversize replacement.
4 Use TB64VF( )L for HL73DU( ), HL73DY( ), HL73LP( ), HL73V( ), HL73DUW( ), HL73DYW( ), and HL73VW( ).

MATERIAL: Collar - 17-4PH stainless steel per AMS5643.

Washer - 300 series stainless steel (.010 thick).
HEAT TREAT: Collar - To condition H1025 per AMS-H-6875.

FINISH: 30 Collar - HL73-( ) = Collar only with silver plate per AMS2410, plus blue identification on body of collar, and cetyl
alcohol lube per Hi-Shear Spec. 305.
HL73DU( ) = Collar only with solid film lube per AS5272, Type I.
HL73DY( ) = Collar only with solid film lube per AS5272, Type I, plus yellow identification on body of collar.
HL73LP( ) = Collar only with solid film lube per AS5272, Type II.
HL73PB( ) = Collar only with cadmium plate per AMS-QQ-P-416, Type II, Class 2, and cetyl alcohol lube
per Hi-Shear Spec. 305.
HL73V( ) = Collar only with solid film lubricant per Lubeco 2123.
Collar &
Washer - HL73DUW( ) = Collar and washer both with solid film lube per AS5272, Type I.
HL73DYW( ) = Collar and washer both with solid film lube per AS5272, Type I.
HL73VW( ) = Collar and washer both with Lubeco 2123 solid film lubricant.
HL73W( ) = Collar same as HL73-( ) and washer is passivated.
HL73WV( ) = Collar same as HL73-( ) and washer is solid film lube per Lubeco 2123.
SPECIFICATION: HI-LOK™ Product Specification 345. Test bolt requirement exceptions per note 4 above.
CODE: Dash number indicates nominal thread size in 1/32nds.
See Finish note for explanation of code letters.
EXAMPLES: HL73-8 = 1/4-28 HI-LOK™ collar.
HL73W8 = 1/4-28 HI-LOK™ collar with washer. "HI-LOK" AND "HL" ARE INTERNATIONAL
REGISTERED TRADEMARKS OF HI-SHEAR CORPORATION

TITLE DRAWING NO.

DATE BY
HI-LOK™ COLLAR
HL73
DRAWN 1961-04-24 DGF
17-4PH STAINLESS STEEL
APPROVED 1961-04-24 MEC
1/16 GRIP VARIATION, TENSION APPLICATION
30 REVISION 2019-10-31 F.CARINGELLA 1 of 1

C 2019 Hi-Shear Corporation