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Unit of Measure

Series

SFTJ

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

MS51551D205B10

Lockring Part Number

RLRR24SA7

Lockring Military Part Number

MS51990-105P

Nut End Type

Undrilled

A Nut End Thread Size

0.2500-28 UNJF-3A

B Stud End Thread Size

0.3125-24

B Stud End Thread-Pitch Diameter

0.2869-0.2884 in

B Stud End Thread-Minor Diameter

0.2559-0.2643 in

C Max

0.091 in

D ±.015

0.670 in

E ±.015

0.810 in

L ±.015

0.625 in