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Unit of Measure

Series

SF(T)5902

Material

8740 Alloy Steel per AMS6322

Heat Treat

35 HRC ( 160 KSI min)

Finish

Cadmium Plate per AMS- QQ-P-416, Type II, Class 3

Military Part Number

MS51992C506-40

Lockring - Low Strength Magnesium

RL1997-106

Lockring - Aluminum

RLRR1997-106

Lockring Part Number

RLRR1997E106

Lockring Military Part Number

MS51997E106P

Nut End Type

Undrilled

A Nut End Thread Size

0.4375-20 UNJF-3A

Stud End type

Recess

B Stud End Thread Size

0.6250-18

B Stud End Thread-Pitch Diameter

0.5927-0.5910 in

B Stud End Thread-Minor Diameter

0.5606-0.5498 in

C ±.020

0.808 in

D - Dia

0.437-0.433 in

E - Dia +.005 -.004

0.456 in

F - Dia +.007 -.002

0.487 in

G - Dia +.000 -.015

0.549 in

H - Dia Min

0.433 in

J

26.000

K +2 -1

102.000 º

M

0.517 in

N -Dia

0.324 in

T ±.015

0.812 in

V ±.016

0.200 Inch

P - Dia ±.010

0.354 in

L ±.015

2.500 in

Grip Length

1.688 in

Shank Length

0.219 in

Step Drill Part Number

SDC625JC

Drive Wrench Number

R1108W

Lockring Drive Tool Part Number

SF5902-6D