The Valve,check, cataloged under National Stock Number 4820-01-280-4821, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Div Gas Turbine Fuel Systems. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Parker-Hannifin Corporation Div Gas Turbine Fuel Systems (CAGE 09523) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-280-4821 |
| Primary Part Number | 6911667 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Div Gas Turbine Fuel Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6911667 PRIMARY | Parker-Hannifin Corporation Div Gas Turbine Fuel Systems (USA) |
| Reference | Meaning |
|---|---|
| 6871678 | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Div Gas Turbine Fuel Systems |
NSN 4820-01-280-4821 is a Valve,check, manufactured by Parker-Hannifin Corporation Div Gas Turbine Fuel Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-280-4821 has 1 manufacturer part number on file: 6911667 (Parker-Hannifin Corporation Div Gas Turbine Fuel Systems).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4820-01-280-4821 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.