The Valve,safety Relief, cataloged under National Stock Number 4820-01-145-4186, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rix Industries. Government technical data includes 2 specifications, 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 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 | 4820-01-145-4186 |
| Primary Part Number | 515-260 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Opening Pressure Setting | 1380.0 POUNDS PER SQUARE INCH 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 |
|---|---|
| 515-260 PRIMARY | Rix Industries (USA) |
NSN 4820-01-145-4186 is a Valve,safety Relief, manufactured by Rix Industries, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-145-4186 has 1 manufacturer part number on file: 515-260 (Rix Industries).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-435-0803. Verify interchangeability with system specifications before substitution.
Key specifications for 515-260: Material: STEEL CORROSION RESISTING OVERALL; Opening Pressure Setting: 1380.0 POUNDS PER SQUARE INCH LBS. 2 specifications are 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.