The Ring,bearing,inner, cataloged under National Stock Number 3110-01-342-9525, 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 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-342-9525 |
| Primary Part Number | IRB-1616 |
| Item Name | Ring,bearing,inner |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Aerospace, Inc Dba Torrington Product |
| Status | ACTIVE |
| Style Designator | SOLID INNER RACE, JOURNAL AND NEEDLE |
| Overall Outside Diameter | 1.2490 INCHES NOMINAL IN |
| Bore Diameter | 1.0000 INCHES NOMINAL IN |
| 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 |
|---|---|
| IRB-1616 PRIMARY | Timken Aerospace, Inc Dba Torrington Product (USA) |
| Reference | Meaning |
|---|---|
| 1488A | 5/9 Secondary reference Volvo Motor Graders Ltd |
NSN 3110-01-342-9525 is a Ring,bearing,inner, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-342-9525 has 1 manufacturer part number on file: IRB-1616 (Timken Aerospace, Inc Dba Torrington Product).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-375-7321. Verify interchangeability with system specifications before substitution.
Key specifications for IRB-1616: Style Designator: SOLID INNER RACE, JOURNAL AND NEEDLE; Overall Width: 1.0050 INCHES NOMINAL IN; Overall Outside Diameter: 1.2490 INCHES NOMINAL IN; Bore Diameter: 1.0000 INCHES NOMINAL IN. 3 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.