The Valve,stop-Check, cataloged under National Stock Number 4820-01-716-1059, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Atomics Aeronautical Systems, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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,stop-Check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | General Atomics Aeronautical Systems, Inc. (CAGE 0YJB5) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-716-1059 |
| Primary Part Number | UBC44052-2 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Atomics Aeronautical Systems, Inc. |
| 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 |
|---|---|
| UBC44052-2 PRIMARY | General Atomics Aeronautical Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| UBC44052 | D/9 Drawing number reference only General Atomics Aeronautical Systems, Inc. |
NSN 4820-01-716-1059 is a Valve,stop-Check, manufactured by General Atomics Aeronautical Systems, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-716-1059 has 1 manufacturer part number on file: UBC44052-2 (General Atomics Aeronautical Systems, Inc.).
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.