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RLR Type lockrings have been inactive for new design since 1969 and are superseded by the improved "RLRR" type lockrings.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).

ASTM A581: 1/2"diameter and under; ASTM A582: over 1/2"diameter.

Unit of Measure

Series

 N/A RLR

Basic Lockring Size

 N/A 160
Material Type1 N/A 416 CRES

Material Specification

 N/A ASTM A581 or ASTM A582

Heat Treat

 N/A None

Finish

 N/A Passivate

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).