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Unit of Measure

Part Type

Stud

Series

SF

Simplified Material

Steel

Material

4130 Steel

Material Specification

MIL-S-6758

Heat Treat

125,000 PSI UTS min

Finish

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

Military Part Number

MS51989-102-53

Lockring Part Number

RLRR16SA5

Lockring Military Part Number

MS51990-102P

Nut End Type

Undrilled

A Nut End Thread Size

0.1380-40 UNF-3A

B Stud End Thread Size

0.1640-32

B Stud End Thread-Pitch Diameter

0.1446-0.1461 in

B Stud End Thread-Minor Diameter

0.1215-0.1280 in

C

7

D ±.015

0.380 in

E ±.015

0.140 in

F ±.015

0.250 in

L ±.015

3.312 in

L Dash Code No.

53.000