The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-271-1008, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-271-1008 |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Inner Member Width | 0.8730 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Outer Member Width | 0.6980 INCHES MINIMUM AND 0.7080 INCHES MAXIMUM IN |
| Static Radial Load Rating | 62750 POUNDS LBS |
| Bore Diameter | 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Material | STEEL COMP 440C INNER MEMBER |
| Material | GREASE AND DISULFIDE MOLYBDENUM LUBRICATION |
| Material | STEEL COMP E4340 OR STEEL COMP 4130 OR STEEL COMP 8630 OUTER RACE MEMBER |
| Outer Member Outside Diameter | 1.5620 INCHES MINIMUM AND 1.5625 INCHES MAXIMUM 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 |
|---|---|
| BACB10AG14 | 5/1 Secondary reference U.S. Government activity |
| MS21154 | 4/1 Identification reference U.S. Government activity |
| MS21154S14 | 2/2 Government specification standardization U.S. Government activity |
NSN 3120-01-271-1008 is a Bearing,plain,self-Aligning, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3120-01-348-8581, 3120-01-356-3229. Verify interchangeability with system specifications before substitution.
Key specifications for 3120-01-271-1008: Inner Member Width: 0.8730 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN; Outer Member Width: 0.6980 INCHES MINIMUM AND 0.7080 INCHES MAXIMUM IN; Static Radial Load Rating: 62750 POUNDS LBS; Bore Diameter: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN. 8 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.