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Superseded by RL24( )7 for new design and applications where it is agreeable by customer to increase counterbore diameter. RL23( )7 will continue to be supplied for existing designs as required.

Unit of Measure

Series

 N/A RL

Basic Lockring Size

 N/A 23
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 Zinc Plate per ASTM B633, Type II, Class Fe/Zn 12

A - Dia +.005 -.004

 N/A 0.389 in

B - Dia +.004 -.003

 N/A 0.266 in

C - Thickness

 N/A 0.123 in

D - Dia

 N/A 0.343 in

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

 N/A 24.000

F - Nr. of Internal Serrations

 N/A 17.000

N/A

  • Fillets rad 0.015 max.
  • Unless otherwise specified, break sharp edges 0.003-0.015, except serrations.
  • 1 The Preferred Alloy Steel Material is the 4130, 4140 or 8740 (SA code).