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Unit of Measure

Series

SFJ

Material

4340 Steel

Material Specification

MIL-S-5000

Heat Treat

160-180 KSI UTS

Finish

Cadmium plate per QQ-P-416, Type II, Class 3

Military Part Number

MS51551D105B7

Lockring Part Number

RLRR24SA7

Lockring Military Part Number

MS51990-105P

Nut End Type

Drilled

A Nut End Thread Size

0.2500-28 UNJF-3A

B Stud End Thread Size

0.3125-18

B Stud End Thread-Pitch Diameter

0.2778-0.2795 in

B Stud End Thread-Minor Diameter

0.2373-0.2474 in

C Max

0.091 in

D ±.015

0.630 in

E ±.015

0.810 in

L ±.015

0.438 in