The Valve,safety Relief, cataloged under National Stock Number 4820-01-444-9659, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. The record lists 4 manufacturer part numbers 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 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (CAGE 01343); Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-444-9659 |
| Primary Part Number | 8712QM51M |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 8712QM51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 8712QM51M PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 516-5343917 ITEM SHH-18 | Naval Sea Systems Command (USA) |
| 516-5486653 ITEM SHH-18 | Naval Sea Systems Command (USA) |
NSN 4820-01-444-9659 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-444-9659 has 4 manufacturer part numbers on file: 8712QM51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 8712QM51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 516-5343917 ITEM SHH-18 (Naval Sea Systems Command), 516-5486653 ITEM SHH-18 (Naval Sea Systems Command).
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.