The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-017-7503, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-017-7503 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 PILOT VALVE |
| Connection Type | THREADED INTERNAL PIPE |
| End Connection Quantity | 5 |
| Nominal Thread Size | 0.500 INCHES IN |
| Spool Quantity | 1 |
| Body Material | COPPER ALLOY OR STEEL CORROSION RESISTING |
| Thread Series Designator | NPT |
| Valve Operation Method | AUTOMATIC |
| Flow Pattern Quantity | 4 |
| Spool Position 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 |
|---|---|
| 6182-2 | 5/2 Secondary reference U.S. Government activity |
| VPP4502-15 | 3/9 Design control — primary reference U.S. Government activity |
| 6182B | 5/9 Secondary reference Air Dry Co of America, Llc |
| 6182-2 | 5/9 Secondary reference Air Dry Co of America, Llc |
| 6182B | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-017-7503 is a Valve,linear,directional Control, classified under FSC 4820, Valves, Nonpowered. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 4320-01-089-2260, 4310-01-192-3589, 4720-01-238-1101. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-017-7503: Furnished Items and Quantity: 2 PILOT VALVE; Connection Type: THREADED INTERNAL PIPE; End Connection Quantity: 5; Nominal Thread Size: 0.500 INCHES IN. 10 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.