Item # RL23SS7, RL Series Lock Rings On Howmet Aerospace

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Superseded by RL24( )7 for new design and applications where it is agreeable by customer to increase counterbore diameter.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

Specifications
Notes

Series	N/A RL
Basic Lockring Size	N/A 23
Material Type¹	N/A 4340 Steel
Material Specification	N/A AMS-S-5000
Heat Treat	N/A 150-165 KSI UTS
Finish	N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 3
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).

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Series

Basic Lockring Size

Material Specification

Heat Treat

Finish

A - Dia +.005 -.004

B - Dia +.004 -.003

C - Thickness

D - Dia

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

F - Nr. of Internal Serrations