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Unit of Measure

Insert Type

Standard

Series

RJ200

Material Type

A286 CRES

Material Specification

AMS 5731 or AMS 5734

Heat Treat

130 KSI UTS min

Finish

Passivate per AMS2700, Plus Solid Film Lube

Military Part Number

MS51991-206

Lockring Rosan Part Number

RLRR28SA8

Lockring Military Part Number

AS51990-106P

Internal Thread Lock

Yes
A - Internal Thread, Class 3B1 0.2500-28 UNJF

B - External Thread

0.3750-16

B - External Thread - Pitch Diameter

0.3347-0.3372 in

B - External Thread - Minor Diameter

0.2906-0.3011 in

C - Overall Length ±.015

0.500 in

D - Thread Length ±.015

0.330 in

E ±.015

0.170 in

F - Dia

0.305 in

G - Dia

0.291 in

H - Dia

0.257-0.267 in

J - Number of Teeth

20.000

K +2º -1º

102.000 º

L - Diameter +.007 -.002

0.345 in

M - Diameter +.005 -.004

0.316 in

N ±.015

0.110 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.