The Disk,valve, cataloged under National Stock Number 4820-01-263-3006, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-263-3006 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Shank Diameter | 0.520 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 1.575 INCHES NOMINAL IN |
| Outside Diameter | 1.125 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES IN |
| Inside Diameter | 0.698 INCHES NOMINAL IN |
| Thread Class | 3B |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 3329538 | 3/9 Design control — primary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 4820-01-263-3006 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-263-3006: Shank Diameter: 0.520 INCHES NOMINAL IN; Flange Seat to Disk End Height: 1.575 INCHES NOMINAL IN; Overall Height: 1.730 INCHES NOMINAL IN; Outside Diameter: 1.125 INCHES NOMINAL IN. 8 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.