The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-733-8985, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components (FSG 28) |
| Manufacturers | U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207) |
| Parameter | Value |
|---|---|
| NSN | 2805-00-733-8985 |
| Primary Part Number | 7338985 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| 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 |
|---|---|
| 7338985 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| A911P040 | 5/9 Secondary reference U.S. Government activity |
| P335AX040 | 5/9 Secondary reference Mcquay-Norris Inc Oem Div an Skf Industries Co |
| TC60-040 | 5/9 Secondary reference U.S. Government activity |
| 1428P040 | C/1 Advisory reference — outside the item-of-supply concept Bosch Automotive Service Solutions Inc. |
| 1428P040 | 5/9 Secondary reference Spx Corp |
| L22878PF040 | 5/9 Secondary reference Ohio Piston Co |
| 7538294 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 2135476 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
| 2135476 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| TC60-040PF | 3/9 Design control — primary reference Dana Corp Engine Products Div |
| 130C040 | 5/9 Secondary reference U.S. Government activity |
NSN 2805-00-733-8985 is a Piston,internal Combustion Engin, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-733-8985 has 1 manufacturer part number on file: 7338985 (U S Army Tank Automotive Command Amsta-Im-Mm).
2 possible matches (shared part number, not a government interchangeability claim): 2805-00-753-8294, 4810-01-519-0225. Verify interchangeability with system specifications before substitution.
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.