The Reducer Adapter,exh, cataloged under National Stock Number 2815-00-403-4665, 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.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | Reducer Adapter,exh |
| FSC / FSG | 2815 — Diesel Engines and Components (FSG 28) |
| Manufacturers | Cummins Inc. (CAGE 15434) |
| Parameter | Value |
|---|---|
| NSN | 2815-00-403-4665 |
| Primary Part Number | 204957 |
| Item Name | Reducer Adapter,exh |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Cummins 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 |
|---|---|
| 204957 PRIMARY | Cummins Inc. (USA) |
NSN 2815-00-403-4665 is a Reducer Adapter,exh, manufactured by Cummins Inc., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-403-4665 has 1 manufacturer part number on file: 204957 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-590-5597. 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.