The Valve,check, cataloged under National Stock Number 4820-01-601-8553, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Western Oilfields Supply Company Dba Power Prime Pump Co Div Power Prime Pump 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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-601-8553 |
| Primary Part Number | 310939 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Western Oilfields Supply Company Dba Power Prime Pump Co Div Power Prime Pump 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 |
|---|---|
| 310939 PRIMARY | Western Oilfields Supply Company Dba Power Prime Pump Co Div Power Prime Pump Co (USA) |
NSN 4820-01-601-8553 is a Valve,check, manufactured by Western Oilfields Supply Company Dba Power Prime Pump Co Div Power Prime Pump Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-601-8553 has 1 manufacturer part number on file: 310939 (Western Oilfields Supply Company Dba Power Prime Pump Co Div Power Prime Pump Co).
Key specifications for 310939: End Item Identification: BEAR WATER. 0 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.