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Unit of Measure

Series

S( )FJ

Material

4130 Steel

Material Specification

MIL-S-6758

Heat Treat

125 KSI UTS min

Finish

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

Military Part Number

MS51551D204-38

Lockring Part Number

RLRR21SA6

Lockring Military Part Number

MS51990-104P

Nut End Type

Undrilled

A Nut End Thread Size

0.1900-32 UNJF-3A

B Stud End Thread Size

0.2500-28

B Stud End Thread-Pitch Diameter

0.2281-0.2296 in

B Stud End Thread-Minor Diameter

0.2014-0.2090 in

C ±.015

0.620 in

D ±.015

0.310 in

E ±.015

0.440 in

L ±.015

2.375 in