The Engine,diesel, cataloged under National Stock Number 2815-01-271-9105, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2815-01-271-9105 |
| Primary Part Number | Z790HDA9181 |
| Item Name | Engine,diesel |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Hatz Diesel of America Inc |
| Status | ACTIVE |
| FSC Application Data | FOR HYDRAULIC PUMP UNIT |
| Strokes Per Cycle | 4 |
| Main Power Takeoff Rotation Direction | CLOCKWISE |
| Voltage in Volts | 12.0 |
| Crankshaft Rotation Direction | COUNTERCLOCKWISE |
| Piston Action Type | SINGLE ACTING |
| Starting Method | ELECTRICAL |
| Accessory Components and Quantity | FUEL FEED PUMP 1 |
| 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 |
|---|---|
| Z790HDA9181 PRIMARY | Hatz Diesel of America Inc (USA) |
| Reference | Meaning |
|---|---|
| Z790HDA175 | 5/9 Secondary reference Hatz Diesel of America Inc |
NSN 2815-01-271-9105 is a Engine,diesel, manufactured by Hatz Diesel of America Inc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-271-9105 has 1 manufacturer part number on file: Z790HDA9181 (Hatz Diesel of America Inc).
Key specifications for Z790HDA9181: FSC Application Data: FOR HYDRAULIC PUMP UNIT; Strokes Per Cycle: 4; Main Power Takeoff Rotation Direction: CLOCKWISE; Voltage in Volts: 12.0. 12 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.