The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-443-9991, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Scott Industrial Systems, Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-443-9991 |
| Primary Part Number | VJJ-4404 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Scott Industrial Systems, Inc |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL PIPE |
| End Connection Quantity | 5 |
| Nominal Thread Size | 0.375 INCHES IN |
| Spool Quantity | 1 |
| Body Material | COPPER ALLOY |
| Thread Series Designator | NPT |
| Valve Operation Method | MANUAL |
| Flow Pattern Quantity | 4 |
| Spool Position Quantity | 4 |
| 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 |
|---|---|
| VJJ-4404 | Scott Industrial Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| VJJ-4404 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-443-9991 is a Valve,linear,directional Control, manufactured by Scott Industrial Systems, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-443-9991 has 1 manufacturer part number on file: VJJ-4404 (Scott Industrial Systems, Inc).
Key specifications for VJJ-4404: Connection Type: THREADED INTERNAL PIPE; End Connection Quantity: 5; Nominal Thread Size: 0.375 INCHES IN; Spool Quantity: 1. 9 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.