The Disk,valve, cataloged under National Stock Number 4820-01-476-3735, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-476-3735 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Pressure Rating | 900.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Shoulder Width | 0.065 INCHES NOMINAL IN |
| Shoulder Height | 0.350 INCHES NOMINAL IN |
| Temp Rating | 600.0 FAHRENHEIT NOMINAL DEGF |
| Style Designator | PLUG |
| Seat Angle | 0.1 RADIANS NOMINAL |
| Nominal Thread Size | 0.750 INCHES IN |
| Media for Which Designed | WATER OR STEAM |
| Thread Class | 2A A |
| Material | NICKEL ALLOY |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 803-2177525-M3XX-22 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-476-3735 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-476-3735: Overall Height: 0.665 INCHES NOMINAL IN; Pressure Rating: 900.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Shoulder Width: 0.065 INCHES NOMINAL IN; Shoulder Height: 0.350 INCHES NOMINAL IN. 11 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.