Item # RAJ207SU9, RJ200 Inserts - Ring Locked, Fine Internal and Coarse External Threads On Howmet Aerospace

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Unit of Measure

Insert Type	N/A Standard
Series	N/A RJ200
Material Type	N/A A286 CRES
Material Specification	N/A AMS 5731 or AMS 5734
Heat Treat	N/A 83 HRB Min
Finish	N/A Passivate per AMS2700
Military Part Number	N/A MS51991-207
Lockring Rosan Part Number	N/A RLRR33SA9
Lockring Military Part Number	N/A AS51990-107P
Internal Thread Lock	N/A No
A - Internal Thread, Class 3B¹	N/A 0.3125-24 UNJF
B - External Thread	N/A 0.5000-13
B - External Thread - Pitch Diameter	N/A 0.4506-0.4531 in
B - External Thread - Minor Diameter	N/A 0.3963-0.4087 in
C - Overall Length ±.015	N/A 0.560 in
D - Thread Length ±.015	N/A 0.360 in
E ±.015	N/A 0.200 in
F - Dia	N/A 0.370 in
G - Dia	N/A 0.396 in
H - Dia	N/A 0.321-0.336 in
J - Number of Teeth	N/A 24.000
K +2º -1º	N/A 102.000 º
L - Diameter +.007 -.002	N/A 0.407 in
M - Diameter +.005 -.004	N/A 0.380 in
N ±.015	N/A 0.120 in

Aluminum Step Drill Part Number²	N/A RCDC33-422
Magnesium Step Drill Part Number³	N/A RCADC33-422
Basic Tap Size⁴	N/A 0.5000-13 UNC
Wrench Part Number	N/A R1107XW
Lockring Drive Tool Part Number	N/A RA207D
Removal Drill Size⁵	N/A V

N/A

The external thread has a special pitch diameter and minor diameter, which installs into an AS8879 Class 3B, FED-STD-H28/2 Class 3B, or National Class 3 tapped hole.
<3> Mating lockring is not included with insert. It must be ordered separately.
<4> For standard lenghts as shown in table, "C" overall length and "D" thread length applies. For non-standard lengths, "C" lengths is in 1/16 inch increments and "E" dimension applies in place of "D" dimension.
Unless otherwise specified dimensions are in inches & ASME Y14.5M.
When parent material surface is not flat or normal to axis of hole, provide a spotface for proper lockring entry.
Remove all burrs and sharp edges.

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.

Insert Type