The Valve,safety Relief, cataloged under National Stock Number 4820-01-330-3197, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Interspiro Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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 | 4820-01-330-3197 |
| Primary Part Number | 460-190-589 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Interspiro Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | PLAIN (SCREW-IN CARTRIDGE) ALL ENDS |
| Connection Type | THREADED CARTRIDGE ALL ENDS |
| Style Designator | SCREW-IN CARTRIDGE |
| Bonnet Type | INSIDE SPRING |
| Disk Loading Method | SPRING |
| Material | STEEL BODY |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| DE2799 | Jfd Ltd (GBR) |
| 336-190-358 | Interspiro Ltd (GBR) |
| 460-190-589 PRIMARY | Interspiro Inc (USA) |
| 6318045 | Naval Sea Systems Command (USA) |
| 336-190-358 PRIMARY | Interspiro Inc (USA) |
NSN 4820-01-330-3197 is a Valve,safety Relief, manufactured by Interspiro Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-330-3197 has 5 manufacturer part numbers on file: DE2799 (Jfd Ltd), 336-190-358 (Interspiro Ltd), 460-190-589 (Interspiro Inc), 6318045 (Naval Sea Systems Command), 336-190-358 (Interspiro Inc).
1 possible match (shared part number, not a government interchangeability claim): 4220-01-557-4872. Verify interchangeability with system specifications before substitution.
Key specifications for 460-190-589: Flow Control Device: DISK; Connection Style: PLAIN (SCREW-IN CARTRIDGE) ALL ENDS; Connection Type: THREADED CARTRIDGE ALL ENDS; Style Designator: SCREW-IN CARTRIDGE. 9 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.