The Valve,safety Relief, cataloged under National Stock Number 4820-01-683-8394, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mueller Refrigeration Products Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Mueller Refrigeration Products Co (CAGE 1BND5) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-683-8394 |
| Primary Part Number | 3030-210 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mueller Refrigeration Products 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 |
|---|---|
| 3030-210 PRIMARY | Mueller Refrigeration Products Co (USA) |
NSN 4820-01-683-8394 is a Valve,safety Relief, manufactured by Mueller Refrigeration Products Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-683-8394 has 1 manufacturer part number on file: 3030-210 (Mueller Refrigeration Products Co).
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.