The Plunger,oil Pump, cataloged under National Stock Number 2240-00-651-0503, is classified within Federal Supply Class 2240 (Locomotive and Rail Car Accessories and Components) of the Railway Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2240-00-651-0503 |
| Item Name | Plunger,oil Pump |
| FSC / FSG | 2240 / 22 — Locomotive and Rail Car Accessories and Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 516729 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2240-00-651-0503 is a Plunger,oil Pump, classified under FSC 2240, Locomotive and Rail Car Accessories and Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2930-00-752-1272, 6150-01-126-6585. Verify interchangeability with system specifications before substitution.
Key specifications for 2240-00-651-0503: End Item Identification: 2210001128512. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.