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Unit of Measure

Series

 N/A S( )FJ

Material

 N/A 1117 Steel

Material Specification

 N/A ASTM A108

Heat Treat

 N/A None

Finish

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

Military Part Number

 N/A MS51551D209-26

Lockring Part Number

 N/A RLRR47SA10

Lockring Military Part Number

 N/A MS51990-109P

Nut End Type

 N/A Drilled

A Nut End Thread Size

 N/A 0.5000-20 UNJF-3A

B Stud End Thread Size

 N/A 0.5625-18

B Stud End Thread-Pitch Diameter

 N/A 0.5284-0.5301 in

B Stud End Thread-Minor Diameter

 N/A 0.4873-0.4980 in

C ±.015

 N/A 1.000 in

D ±.015

 N/A 0.670 in

E ±.015

 N/A 0.880 in

L ±.015

 N/A 1.625 in

Notes

 N/A
  • The stud end thread has a special pitch diameter and minor diameter which installs into a MIL-S-8879 class 3B, FED-STD-H28/2 class 3B, or National class 3 tapped hole.
  • Studs are installed in accordance with MS51995.
  • Mating lockring is not included with stud. It must be ordered separately.
  • <7>2 max incomplete threads.