The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-647-1663, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-647-1663 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.5 INCHES IN |
| End Connection Quantity | 2 |
| Features Provided | NORMALLY OPEN |
| Thread Series Designator | NPT |
| Valve Operation Method | AUTOMATIC |
| Flow Pattern Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| VPS-2502-MS-167 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-647-1663 is a Valve,linear,directional Control, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-647-1663: Nominal Pipe Size Accommodated: 0.5 INCHES IN; End Connection Quantity: 2; Features Provided: NORMALLY OPEN; Special Features: CAGE 97902 IS THE ACTUAL OEM MANUFACTURER. 6 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.