The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-129-1879, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Williams Controls Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-129-1879 |
| Primary Part Number | WM782A |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Williams Controls 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 |
NSN 4820-01-129-1879 is a Valve,linear,directional Control, manufactured by Williams Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-129-1879 has 2 manufacturer part numbers on file: WM782A (Williams Controls Inc), 118316 (Williams Controls Inc).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-175-1882. Verify interchangeability with system specifications before substitution.
Key specifications for WM782A: Special Features: ZINC ALLOY BODY AND CAM; RUBBER POPPETS AND O RINGS; STEEL SHAFT; BLACK PLASTIC KNOB; 0.125-27 NPTF PORTS; OPERATING PRESSURE 150 PSI; OPERATING TEMPERATURE 200 DEGREE FAHRENHEIT; PANEL MOUNTED. 0 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.