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Unit of Measure

Insert Type

Standard

Series

RJ300

Material Type

303 CRES

Material Specification

ASTM A582 or AMS 5640

Heat Treat

None

Finish

Passivate per AMS2700, Plus Solid Film Lube

Lockring Howmet Part Number

RLRR47SB10

Lockring Military Part Number

MS51990-109P
Internal Thread Lock1 Yes

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

0.880 in

D ±.015

0.640 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.