Item # RJ2004SA7, RJ2000 Inserts - Ring Locked, Blind Coarse Internal and Coarse External Threads On Howmet Aerospace

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Catalog > Inserts and Studs > Ring Locked Inserts & Studs > Ring Locked Inserts > RJ2000 Inserts - Ring Locked, Blind Coarse Internal and Coarse External Threads > Item # RJ2004SA7

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Unit of Measure

Insert Type	N/A Blind
Series	N/A RJ2000
Material Type	N/A 4130 Steel
Material Specification	N/A AMS-S-6758, COND F
Heat Treat	N/A 125 KSI UTS min
Finish	N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 3
Lockring Rosan Part Number	N/A RLRR12SA6
Lockring Military Part Number	N/A MS51990-104P
Internal Thread Lock	N/A No
A - Internal Thread, Class 3B¹	N/A 0.1640-32 UNJC
B - External Thread	N/A 0.2500-20
B - External Thread - Pitch Diameter	N/A 0.2178-0.2198 in
B - External Thread - Minor Diameter	N/A 0.1824-1.9090 in
C - Length ±.015	N/A 0.440 in
D ±.015	N/A 0.310 in
E - Min. Full Thread Depth	N/A 0.220 in

Aluminum Step Drill Part Number²	N/A RCDC21-201S
Magnesium Step Drill Part Number³	N/A RCADC21-201S
Basic Tap Size⁴	N/A 0.2500-20 UNC
Wrench Part Number	N/A R1104W
Lockring Drive Tool Part Number	N/A R104D
Removal Drill Size⁵	N/A 19/64

N/A

The external thread has a special pitch diameter and minor diameter which installs into an AS8879 Class 3B, MIL-S-7742 Class 3B, or National Class 3 tapped hole.
Mating lockring is not included with insert, it must be ordered separately.
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.