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Unit of Measure

Insert Type

Standard

Series

RJ300

Material Type

17-4PH CRES

Material Specification

AMS 5643

Heat Treat

COND H1025

Finish

Passivate per AMS2700

Lockring Howmet Part Number

RLRR47SB10

Lockring Military Part Number

MS51990-109P
Internal Thread Lock1 No

A - Internal Thread, Class 3B

0.4375-20 UNJF

B - External Thread

0.6250-18

B - External Thread - Pitch Diameter

0.5894-0.5914 in

B - External Thread - Minor Diameter

0.5498-0.5593 in

C - Length ±.015

1.060 in

D ±.015

0.830 in
  • 1 AS8879 Internal Thread
  • 2 Step drills are designed for thru hole drilling. When used to drill a blind hole, it may be necessary to grind the drill to suit the depth required.
  • 3 Step drills are designed for thru hole drilling. When used to drill a blind hole, it may be necessary to grind the drill to suit the depth required.
  • 4 Taps are not supplied by Howmet.
  • 5 Removal drills are not supplied by Howmet.