The Bearing,sleeve, cataloged under National Stock Number 3120-01-288-2140, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 3120-01-288-2140 |
| Primary Part Number | M1215-8 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 0.9355 INCHES MINIMUM AND 0.9395 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 0.7490 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 932 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3120-01-288-2140 is a Bearing,sleeve, manufactured by Altra Industrial Motion Corp., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-288-2140 has 4 manufacturer part numbers on file: M1215-8 (Altra Industrial Motion Corp.), 31656 (Altra Industrial Motion Corp.), CB1215-08 (Bunting Bearings Corp), CB1215-8 (Bunting Bearings Corp).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-382-5139. Verify interchangeability with system specifications before substitution.
Key specifications for M1215-8: Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 0.9355 INCHES MINIMUM AND 0.9395 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Overall Length: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN. 5 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.