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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

MS51989-103-61

Lockring Part Number

RLRR18SA6

Lockring Military Part Number

MS51990-103P

Nut End Type

Undrilled

A Nut End Thread Size

0.1640-36 UNF-3A

B Stud End Thread Size

0.1900-24

B Stud End Thread-Pitch Diameter

0.1639-0.1654 in

B Stud End Thread-Minor Diameter

0.1334-0.1413 in

C

8

D ±.015

0.410 in

E ±.015

0.230 in

F ±.015

0.380 in

L ±.015

3.812 in

L Dash Code No.

61.000