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Unit of Measure

Series

N/A RLRR

Basic Lockring Size

N/A 28
Material Type1 N/A 4130 Steel or 4140 Steel or 8740 Steel

Material Specification

N/A AMS 6370 (4130 Steel), AMS 6382 (4140 Steel), AMS 6322 (8740 Steel)

Heat Treat

N/A 36-45 HRc per AMS 2759

Finish

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

A - Dia ±.005

N/A 0.400 in

B - Thickness ±.005

N/A 0.138 in

C ±.005

N/A 0.040 in

E - Dia +.004 -.003

N/A 0.323 in

F - Diameter

N/A 0.364 in

G - Dia +.005 -.004

N/A 0.468 in

H - Dia +.003 -.006

N/A 0.430 in

J - Nr. of Internal Serrations

N/A 20.000

K +1º -2º

N/A 102.000 º

M - Nr. of External Serrations (Total Teeth; Both Segments)

N/A 14.000

N

N/A 90.000 º

R - Radius, 2 Places

N/A 0.214 in

N/A

  • Fillets rad 0.015 max.
  • Unless otherwise specified, break sharp edges 0.003-0.015, except serrations.
  • Drawing symbols and tolerance per ANSI Y14.5

  • 1 The Preferred Alloy Steel Material is the 4130, 4140 or 8740 (SA code).