The Engine,diesel, cataloged under National Stock Number 2815-01-280-2961, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-280-2961 |
| Primary Part Number | 57K0661 |
| Item Name | Engine,diesel |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Piston Action Type | SINGLE ACTING |
| Accessory Components and Quantity | STARTER ASSEMBLY; FAN ASSEMBLY; CLUTCH FAN ASSEMBLY; ALTERNATOR AND PULLEY |
| Cylinder Quantity | 6 |
| Cylinder Arrangement | HORIZONTAL OPPOSED W/HORIZONTAL CRANKSHAFT |
| 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 |
|---|---|
| 57K0661 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12363270 | 5/9 Secondary reference Cummins Metropower, Inc. |
NSN 2815-01-280-2961 is a Engine,diesel, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-280-2961 has 1 manufacturer part number on file: 57K0661 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 57K0661: Piston Action Type: SINGLE ACTING; Accessory Components and Quantity: STARTER ASSEMBLY; FAN ASSEMBLY; CLUTCH FAN ASSEMBLY; ALTERNATOR AND PULLEY; Special Features: M 939 5 TON TRUCK; COMBINED ENGINE 012656971 AND SHIPPING AND STORAGE CONTAINER, ENGINE 013173498; Cylinder Quantity: 6. 4 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.