The Valve,safety Relief, cataloged under National Stock Number 4820-01-694-7337, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (CAGE 0ASY6); Parker Hannifin Corporation Div Village Marine Tech (CAGE 62144) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-694-7337 |
| Primary Part Number | MPL2955A |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc |
| 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 |
|---|---|
| MPL2955A PRIMARY | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| 75012082 | Parker Hannifin Corporation Div Village Marine Tech (USA) |
| Reference | Meaning |
|---|---|
| S9531-DW-MMC-010 7-23 INDEX #26 | C/1 Advisory reference — outside the item-of-supply concept Parker Hannifin Corporation Div Village Marine Tech |
NSN 4820-01-694-7337 is a Valve,safety Relief, manufactured by Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-694-7337 has 2 manufacturer part numbers on file: MPL2955A (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc), 75012082 (Parker Hannifin Corporation Div Village Marine Tech).
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.