The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-01-457-1876, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Cummins Inc.. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-457-1876 |
| Primary Part Number | 4020059 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Diameter | 4.465 INCHES NOMINAL IN |
| Head Style | DISH |
| Ring Groove Quantity | 3 |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Material | ALUMINUM |
| Skirt Type | SOLID |
| 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 |
|---|---|
| 4020059 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3919566 | 5/9 Secondary reference Cummins Inc. |
NSN 2815-01-457-1876 is a Piston,internal Combustion Engin, manufactured by Cummins Inc., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-457-1876 has 1 manufacturer part number on file: 4020059 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4310-01-676-1624. Verify interchangeability with system specifications before substitution.
Key specifications for 4020059: Diameter: 4.465 INCHES NOMINAL IN; Head Style: DISH; Ring Groove Quantity: 3; Skirt Bottom Cutaway Feature: NOT INCLUDED. 6 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.