The Bearing,sleeve, cataloged under National Stock Number 3120-00-661-8951, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3120-00-661-8951 |
| Primary Part Number | 7748634 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 0.9630 INCHES MINIMUM AND 0.9650 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | QQ-L-225, COMP 12 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.8280 INCHES MINIMUM AND 0.8310 INCHES MAXIMUM IN |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 7748634 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 62-1800 | Wetherill Associates Inc (USA) |
| Reference | Meaning |
|---|---|
| 3120006618951 | 5/9 Secondary reference E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3120-00-661-8951 is a Bearing,sleeve, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-661-8951 has 2 manufacturer part numbers on file: 7748634 (U S Army Tank Automotive Command Amsta-Im-Mm), 62-1800 (Wetherill Associates Inc).
4 possible matches (shared part number, not a government interchangeability claim): 7025-01-127-8728, 6530-01-139-9583, 5330-01-331-3718. Verify interchangeability with system specifications before substitution.
Key specifications for 7748634: Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 0.9630 INCHES MINIMUM AND 0.9650 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material Document and Classification: QQ-L-225, COMP 12 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.