The Valve,safety Relief, cataloged under National Stock Number 4820-01-270-4926, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Marine Electronics, Llc Sales. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-270-4926 |
| Primary Part Number | MX04954 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Marine Electronics, Llc Sales |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Disk Loading Method | SPRING |
| Opening Pressure Setting | 165.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| MX04954 PRIMARY | Marine Electronics, Llc Sales (USA) |
| Reference | Meaning |
|---|---|
| MA75-0165 | 5/9 Secondary reference Marine Electronics, Llc Sales |
| 112C-1/4,165 | 5/9 Secondary reference Marine Electronics, Llc Sales |
NSN 4820-01-270-4926 is a Valve,safety Relief, manufactured by Marine Electronics, Llc Sales, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-270-4926 has 1 manufacturer part number on file: MX04954 (Marine Electronics, Llc Sales).
Key specifications for MX04954: Flow Control Device: DISK; Disk Loading Method: SPRING; Special Features: VALVE SIZE 0.250 IN. IN; Opening Pressure Setting: 165.0 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.