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Unit of Measure

Series

RL

Basic Lockring Size

21
Material Type1 4130 Steel or 4140 Steel or 8740 Steel

Material Specification

AMS 6370 (4130 Steel), AMS 6382 (4140 Steel), AMS 6322 (8740 Steel)

Heat Treat

36-45 HRc per AMS 2759

Finish

Cadmium Plate per ASTM B766, Type II, Class 8

A - Dia +.005 -.004

0.354 in

B - Dia +.004 -.003

0.213 in

C - Thickness

0.099 in

D - Dia

0.298 in

E - Nr. of External Serrations (Total Teeth), Approx

24.000

F - Nr. of Internal Serrations

13.000
  • 1 The Preferred Alloy Steel Material is the 4130, 4140 or 8740 (SA code).