The Valve,check, cataloged under National Stock Number 4820-01-582-3984, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rosenbauer International Ag. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-582-3984 |
| Primary Part Number | 524093 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rosenbauer International Ag |
| Status | ACTIVE |
| Operating Pressure | 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| 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 |
|---|---|
| 524093 | Rosenbauer International Ag (AUT) |
| Reference | Meaning |
|---|---|
| 11750-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-582-3984 is a Valve,check, manufactured by Rosenbauer International Ag, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-582-3984 has 1 manufacturer part number on file: 524093 (Rosenbauer International Ag).
1 possible match (shared part number, not a government interchangeability claim): 6145-01-583-7084. Verify interchangeability with system specifications before substitution.
Key specifications for 524093: Operating Pressure: 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: NAME ON TECH DATA-VALVE,NON-RETURN; MATERIAL-BRASS; VALVE OPERATING METHOD-SPRING. 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.