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RLR Type lockrings have been inactive for new design since 1969 and are superseded by the improved "RLRR" type lockrings. "RLR" type lockrings will be provided for existing designs, however, it will normally be advantageous from a price and delivery standpoint to substitute the "RLRR" type lockring (ref. MS51990).

Unit of Measure

Series

 N/A RLR

Basic Lockring Size

 N/A 160
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 ASTM B766, Type II, Class 8

A - Dia +.005 -.004

 N/A 2.546 in

B - Dia +.004 -.003

 N/A 2.108 in

C - Thickness

 N/A 0.193 in

D - Dia

 N/A 2.444 in

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

 N/A 37.000

F - Nr. of Internal Serrations

 N/A 45.000

R - Radius

 N/A 1.239 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).