The Ring,bearing,inner, cataloged under National Stock Number 3110-00-355-6561, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3110-00-355-6561 |
| Item Name | Ring,bearing,inner |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Style Designator | SOLID INNER RACE, JOURNAL AND NEEDLE |
| Overall Outside Diameter | 3.2500 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS |
| Bore Diameter | 2.7500 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 |
| Reference | Meaning |
|---|---|
| IR445228 | 5/1 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| MS51962-32 | 2/2 Government specification standardization U.S. Government activity |
| MI44 | 5/1 Secondary reference U.S. Government activity |
| IR9567 | 5/1 Secondary reference Rbc Bearings Incorporated Div West Trenton Division |
NSN 3110-00-355-6561 is a Ring,bearing,inner, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3110-01-193-3373. Verify interchangeability with system specifications before substitution.
Key specifications for 3110-00-355-6561: Surface Finish: GROUND; Style Designator: SOLID INNER RACE, JOURNAL AND NEEDLE; Overall Width: 1.7600 INCHES NOMINAL IN; Overall Outside Diameter: 3.2500 INCHES NOMINAL IN. 6 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.