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Unit of Measure

Insert Type

Standard

Series

RJ300

Material Type

6AI-4V Titanium

Material Specification

MIL-T-9047, COND A or AMS4967

Heat Treat

130 KSI UTS min

Finish

None

Military Part Number

MS51991-312

Lockring Howmet Part Number

RLRR72SB11

Lockring Military Part Number

MS51990-112P
Internal Thread Lock1 No

A - Internal Thread, Class 3B

0.6250-18 UNJF

B - External Thread

1.0000-14

B - External Thread - Pitch Diameter

0.9541-0.9566 in

B - External Thread - Minor Diameter

0.9036-0.9154 in

C - Length ±.015

1.000 in

D ±.015

0.740 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.