The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-01-334-1681, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rockford Powertrain Inc Div Powertrain Rockford, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 2815 — Diesel Engines and Components (FSG 28) |
| Manufacturers | Rockford Powertrain Inc Div Powertrain Rockford, Inc. (CAGE 77873); Giat Industries Centre De Saint Chamond (CAGE F1296) |
| Parameter | Value |
|---|---|
| NSN | 2815-01-334-1681 |
| Primary Part Number | 2-21090 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Rockford Powertrain Inc Div Powertrain Rockford, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 2-21090 PRIMARY | Rockford Powertrain Inc Div Powertrain Rockford, Inc. (USA) |
| 80X2381A050- | Giat Industries Centre De Saint Chamond (FRA) |
NSN 2815-01-334-1681 is a Piston,internal Combustion Engin, manufactured by Rockford Powertrain Inc Div Powertrain Rockford, Inc., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-334-1681 has 2 manufacturer part numbers on file: 2-21090 (Rockford Powertrain Inc Div Powertrain Rockford, Inc.), 80X2381A050- (Giat Industries Centre De Saint Chamond).
2 possible matches (shared part number, not a government interchangeability claim): 5920-01-602-0076, 2540-01-672-2325. 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.