The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-685-8637, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Surface Warfare Center Dahlgren Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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,linear,directional Control |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Surface Warfare Center Dahlgren Div (CAGE 07609) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-685-8637 |
| Primary Part Number | 102059-2 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Surface Warfare Center Dahlgren Div |
| 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 |
|---|---|
| 102059-2 PRIMARY | Naval Surface Warfare Center Dahlgren Div (USA) |
| Reference | Meaning |
|---|---|
| 102059 | D/9 Drawing number reference only Naval Surface Warfare Center Dahlgren Div |
NSN 4820-01-685-8637 is a Valve,linear,directional Control, manufactured by Naval Surface Warfare Center Dahlgren Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-685-8637 has 1 manufacturer part number on file: 102059-2 (Naval Surface Warfare Center Dahlgren Div).
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 4820-01-685-8637 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.