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Unit of Measure

Series

SFCH

Material Specification

AMS 5731 or AMS 5734

Stud Material

A286 CRES

Stud Heat Treat

130 KSI UTS min

Lockring Drive Tool Part Number

SFC31DH16

A Nut End Thread Size MIL-S-8879

0.3125-24 UNJF-3A

B Nut End Thread Size MIL-S-8879

0.3125-18 UNJC 3A

M Thread Size MIL-S-8879

0.3125-24 UNJF 3B

C ±.020

0.760 in

D Min

0.469 in

F - Dia

0.285 in

H - Min

0.234 in

J - Dia Ref

0.399 in

N -Dia +.003 -.000

0.381 in

T Number of Teef

12

P +.020 -.000

0.169 in

Q Min

0.747 in

R Min

0.890 in

S - Dia +.010 -.000

0.412 in

L ±.015

1.375 in

E Min. Full Thread Length

0.719 in

Lockring Material

Inconel 718

Lockring Heat Treart

230 KSI UTS Min

Lockring Material Specification

AMS 5662