The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-421-2502, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 — Bearings, Plain, Unmounted (FSG 31) |
| Parameter | Value |
|---|---|
| NSN | 3120-00-421-2502 |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| 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 |
|---|---|
| 76752 | 5/1 Secondary reference Rbc Transport Dynamics Corp Div Rbc Transport Dynamics |
| 905360-1 | 3/2 Design control — primary reference U.S. Government activity |
| ADB4-201 | 5/1 Secondary reference New Hampshire Ball Bearings Inc Div Astro Division |
NSN 3120-00-421-2502 is a Bearing,plain,self-Aligning, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3020-00-691-4396. Verify interchangeability with system specifications before substitution.
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.