Item # R1109SA11, R1100 Series Inserts - Ring Locked, Solid Coarse External Threads On Howmet Aerospace

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Unit of Measure

Insert Type	N/A Solid
Series	N/A R1100
Material Type	N/A 4130 Steel
Material Specification	N/A AMS-S-6758
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 Number¹	N/A RLRR38SA9
Lockring Military Part Number²	N/A MS51990-108P
Internal Thread Lock	N/A No
A - Dia ±.005	N/A 0.445 in
B - External Thread	N/A 0.5625-12
B - External Thread - Major Diameter	N/A 0.5513-0.5625 in
B - External Thread - Pitch Diameter	N/A 0.5091-0.5116 in
B - External Thread - Minor Diameter	N/A 0.4503-0.4635 in
C ±.015	N/A 0.690 in
D ±.015	N/A 0.480 in
K - Dia	N/A 0.485-0.494 in
L ±.015	N/A 0.120 in
M - Dia ±.010	N/A 0.450 in

Aluminum Step Drill Part Number³	N/A RCDC38-484
Magnesium Step Drill Part Number⁴	N/A RCADC38-484
Basic Tap Size⁵	N/A 0.5625-12 UNC
Wrench Part Number	N/A R1108W
Lockring Drive Tool Part Number	N/A R1108D
Removal Drill Size⁶	N/A 29/64

N/A

The external thread has a special pitch diameter and minor diameter which installs into a AS8879 class 3B, FED-STD-H28/2 class 3B, or National class 3 tapped hole.
4130 Steel, 1117 Steel, 303 CRES, A286 CRES indicate standard materials.
125 Microinch Ra for surface roughness per ANSI/ASME B46.1, except:
- 250 Microinch Ra for serration
- 100 Microinch Ra for cut threads
- 63 Microinch Ra for ground or rolled threads.
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 Mating lockring is not included with insert. It must be ordered separately.
² Mating lockring is not included with insert. It must be ordered separately.
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 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.
⁵ Taps and Removal drills are available for order.
⁶ Taps and Removal drills are available for order.

Insert Type