The Disk,valve, cataloged under National Stock Number 4820-00-720-3935, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-720-3935 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Pressure Rating | 670.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 65.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF |
| Outside Diameter | 0.623 INCHES NOMINAL IN |
| Inside Diameter | 0.3115 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM IN |
| Media for Which Designed | OIL |
| Material | PLASTIC |
| 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 |
|---|---|
| 213770 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-720-3935 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-720-3935: Overall Height: 0.050 INCHES NOMINAL IN; Pressure Rating: 670.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 65.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF; Outside Diameter: 0.623 INCHES NOMINAL IN. 6 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.