The Piston, cataloged under National Stock Number 2825-00-446-9375, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. 50 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Piston |
| FSC / FSG | 2825 — Steam Turbines and Components (FSG 28) |
| Parameter | Value |
|---|---|
| NSN | 2825-00-446-9375 |
| Item Name | Piston |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| D15-699NPC688 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-790UPC474 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-646MPC474 | 5/9 Secondary reference Westinghouse Electric Corp |
| 9800 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-640RPC653 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-413YPC474 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-704QPC688 | 5/9 Secondary reference Westinghouse Electric Corp |
| 9800 | 3/2 Design control — primary reference U.S. Government activity |
| D15-509UPC688 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-4130PC474 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-646UPC474 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-332MPC484 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-621JPC354 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-439PPC354 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-640BPC653 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-790CPC474 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-631JPC653 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-699WPC688 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-790VPC474 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-704BPC688 | 5/9 Secondary reference Westinghouse Electric Corp |
NSN 2825-00-446-9375 is a Piston, classified under FSC 2825, Steam Turbines and Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5996-00-947-3833. 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.