The Valve,safety Relief, cataloged under National Stock Number 4820-01-562-0123, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Superior Valve Co. The record lists 2 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.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Superior Valve Co (CAGE 58553); Bronswerk Marine Inc (CAGE 38728) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-562-0123 |
| Primary Part Number | 3212-300 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Superior Valve Co |
| Status | ACTIVE |
| 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 |
|---|---|
| 3212-300 PRIMARY | Superior Valve Co (USA) |
| 4112.150 IT 3 | Bronswerk Marine Inc (CAN) |
NSN 4820-01-562-0123 is a Valve,safety Relief, manufactured by Superior Valve Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-562-0123 has 2 manufacturer part numbers on file: 3212-300 (Superior Valve Co), 4112.150 IT 3 (Bronswerk Marine Inc).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-723-2597. 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.