The Engine,diesel, cataloged under National Stock Number 2815-01-032-5981, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Hatz Diesel of America Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-032-5981 |
| Primary Part Number | Z790-28 |
| Item Name | Engine,diesel |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Hatz Diesel of America Inc |
| Status | ACTIVE |
| Strokes Per Cycle | 4 |
| Voltage in Volts | 12.0 |
| Crankshaft Rotation Direction | COUNTERCLOCKWISE |
| Piston Action Type | SINGLE ACTING |
| Starting Method | ELECTRICAL |
| Cylinder Quantity | 2 |
| Cylinder Arrangement | STRAIGHT IN-LINE |
| Standard Bore Diameter | 3.540 INCHES IN |
| Stroke Length | 3.940 INCHES IN |
| 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 |
|---|---|
| Z790-28 PRIMARY | Hatz Diesel of America Inc (USA) |
| Reference | Meaning |
|---|---|
| 8141033-1 | 5/9 Secondary reference U.S. Government activity |
| Z790 | 5/9 Secondary reference Wisconsin Motors, Llc |
| Z790-184 | 5/9 Secondary reference Hatz Diesel of America Inc |
NSN 2815-01-032-5981 is a Engine,diesel, manufactured by Hatz Diesel of America Inc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-032-5981 has 1 manufacturer part number on file: Z790-28 (Hatz Diesel of America Inc).
Key specifications for Z790-28: Strokes Per Cycle: 4; Voltage in Volts: 12.0; Crankshaft Rotation Direction: COUNTERCLOCKWISE; Piston Action Type: SINGLE ACTING. 9 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.