The Valve,check, cataloged under National Stock Number 4820-01-312-7951, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Motion & Flow Control Products, Inc. Dba Controlled Motion Solutions (CAGE 55886); Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-312-7951 |
| Primary Part Number | 2888589-2 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 483-3/4B1-10 | Motion & Flow Control Products, Inc. Dba Controlled Motion Solutions (USA) |
| 2888589-2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 483-3/4B | 5/9 Secondary reference U.S. Government activity |
| 483-3/4B1-10 | 5/9 Secondary reference U.S. Government activity |
| 2888589-2 | 5/9 Secondary reference U.S. Government activity |
| 2888589-2 | 5/1 Secondary reference Raytheon Company Dba Raytheon Co |
| 2888589-2 | 5/1 Secondary reference Raytheon Company |
NSN 4820-01-312-7951 is a Valve,check, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-312-7951 has 2 manufacturer part numbers on file: 483-3/4B1-10 (Motion & Flow Control Products, Inc. Dba Controlled Motion Solutions), 2888589-2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
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.