The Ring,bearing,inner, cataloged under National Stock Number 3110-01-184-8370, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-184-8370 |
| Primary Part Number | IRA-12-OHL |
| Item Name | Ring,bearing,inner |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Aerospace, Inc Dba Torrington Product |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Style Designator | INNER RING, ROLLER, CYLINDRICAL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN |
| Features Provided | LUBRICATION HOLE AND LUBRICATION GROOVE |
| Bore Shape | STRAIGHT |
| Functional Description | USED WITH DRAWN CUP /TYPE DC/ NEEDLE AND ROLLER BEARINGS |
| Bore Diameter | 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Material | STEEL COMP 1010 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| IRA-12-OHL | Jtekt Bearings North America Llc Div Kbna - Ord 1 (USA) |
| IRA-12-OHL PRIMARY | Timken Aerospace, Inc Dba Torrington Product (USA) |
| IRA-12-L | Jtekt Bearings North America Llc Div Kbna - Ord 1 (USA) |
| IRA-12-LOH | Jtekt Bearings North America Llc Div Kbna - Ord 1 (USA) |
| IRA-12-L | Timken Aerospace, Inc Dba Torrington Product (USA) |
NSN 3110-01-184-8370 is a Ring,bearing,inner, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-184-8370 has 5 manufacturer part numbers on file: IRA-12-OHL (Jtekt Bearings North America Llc Div Kbna - Ord 1), IRA-12-OHL (Timken Aerospace, Inc Dba Torrington Product), IRA-12-L (Jtekt Bearings North America Llc Div Kbna - Ord 1), IRA-12-LOH (Jtekt Bearings North America Llc Div Kbna - Ord 1), IRA-12-L (Timken Aerospace, Inc Dba Torrington Product).
Key specifications for IRA-12-OHL: Surface Finish: GROUND; Style Designator: INNER RING, ROLLER, CYLINDRICAL; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Overall Width: 1.0290 INCHES MINIMUM AND 1.0340 INCHES MAXIMUM IN. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.