The Valve,four Way, cataloged under National Stock Number 4820-01-209-9975, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-209-9975 |
| Item Name | Valve,four Way |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | 5 PORTS,SPRING RETURN,DUAL PILOTS; PILOT PRESSURE 40 PSI MIN; TEMP RANGE 30 TO 230 DEG F; WORKING PRESSURE 150 PSI MAX DEGF |
| 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 |
|---|---|
| R-431 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-209-9975 is a Valve,four Way, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-209-9975: General Characteristics Item Description: 5 PORTS,SPRING RETURN,DUAL PILOTS; PILOT PRESSURE 40 PSI MIN; TEMP RANGE 30 TO 230 DEG F; WORKING PRESSURE 150 PSI MAX DEGF. 1 specification is 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.