The Crown,piston, cataloged under National Stock Number 2815-01-078-8889, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-078-8889 |
| Primary Part Number | 5147650 |
| Item Name | Crown,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CAST IRON; UPPER SECTION OF A TWO PIECE PISTON; 3 RING GROOVES,DESIGNED FRO 4.250 IN. BORE DIA; 1.505 IN. DIA PISTON PIN HOLE 4.554 IN. OVERALL H 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 |
|---|---|
| 5147650 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
NSN 2815-01-078-8889 is a Crown,piston, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-078-8889 has 1 manufacturer part number on file: 5147650 (Rolls-Royce Solutions America Inc).
Key specifications for 5147650: General Characteristics Item Description: CAST IRON; UPPER SECTION OF A TWO PIECE PISTON; 3 RING GROOVES,DESIGNED FRO 4.250 IN. BORE DIA; 1.505 IN. DIA PISTON PIN HOLE 4.554 IN. OVERALL H IN. 1 specification is 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.