The Valve,safety Relief, cataloged under National Stock Number 4820-01-376-8856, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Superior Valve Co. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-376-8856 |
| Primary Part Number | 3215-450PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Superior Valve Co |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE BODY LINING |
| Opening Pressure Setting | 450.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AIR |
| 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 |
|---|---|
| 91726576 | Thales Sa (FRA) |
| 3215-450PSI PRIMARY | Superior Valve Co (USA) |
| 3215-450PSI | Acal Bfi France SAS (FRA) |
| 91726576 | Thales Las France SAS (FRA) |
| Reference | Meaning |
|---|---|
| 3215-450PSI | 5/9 Secondary reference Acal |
NSN 4820-01-376-8856 is a Valve,safety Relief, manufactured by Superior Valve Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-376-8856 has 4 manufacturer part numbers on file: 91726576 (Thales Sa), 3215-450PSI (Superior Valve Co), 3215-450PSI (Acal Bfi France SAS), 91726576 (Thales Las France SAS).
Key specifications for 3215-450PSI: Special Features: 90 DEG ANGLE; MALE X-FLARE; INLET 0.375 NPT; OUTLET 0.500 SAE; PORT 0.166; Material: COPPER ALLOY BODY; Material: PLASTIC POLYTETRAFLUOROETHYLENE BODY LINING; Opening Pressure Setting: 450.0 POUNDS PER SQUARE INCH LBS. 4 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.