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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

MS51989-110-66

Lockring Part Number

RLRR47SA10

Lockring Military Part Number

MS51990-109P

Nut End Type

Undrilled

A Nut End Thread Size

0.5625-18 UNF-3A

B Stud End Thread Size

0.6250-11

B Stud End Thread-Pitch Diameter

0.5674-0.5699 in

B Stud End Thread-Minor Diameter

0.5028-0.5174 in

C

16

D ±.015

0.940 in

E ±.015

0.720 in

F ±.015

1.000 in

L ±.015

4.125 in

L Dash Code No.

66.000