The Valve,stop-Check, cataloged under National Stock Number 4820-01-293-9259, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Us Naval Regional Contracting Office. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Us Naval Regional Contracting Office (CAGE 0CMW6); Sab Wabco Ltd (CAGE K4669) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-293-9259 |
| Primary Part Number | 303453 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Us Naval Regional Contracting Office |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 4820-01-293-9259 is a Valve,stop-Check, manufactured by Us Naval Regional Contracting Office, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-293-9259 has 2 manufacturer part numbers on file: 303453 (Us Naval Regional Contracting Office), 303453 (Sab Wabco Ltd).
1 possible match (shared part number, not a government interchangeability claim): 3460-01-595-0515. 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.