The Disk,valve, cataloged under National Stock Number 4820-01-294-3280, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Transdigm Inc Div Adelwiggins Group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-294-3280 |
| Primary Part Number | G2081-003-5(SPOOL) |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Shank Diameter | 0.171 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 1.663 INCHES NOMINAL IN |
| Outside Diameter | 0.438 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Material Document and Classification | QQ-S-763, CLASS 304, COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Inside Diameter | 0.093 INCHES NOMINAL IN |
| Media for Which Designed | OIL |
| Material | STEEL COMP 304 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| G2081-003-5(SPOOL) PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| Reference | Meaning |
|---|---|
| G2081-003-5 | 5/9 Secondary reference Preece Inc Decca Valves Div |
NSN 4820-01-294-3280 is a Disk,valve, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-294-3280 has 1 manufacturer part number on file: G2081-003-5(SPOOL) (Transdigm Inc Div Adelwiggins Group).
Key specifications for G2081-003-5(SPOOL): Shank Diameter: 0.171 INCHES NOMINAL IN; Flange Seat to Disk End Height: 1.663 INCHES NOMINAL IN; Overall Height: 1.725 INCHES NOMINAL IN; Outside Diameter: 0.438 INCHES NOMINAL IN. 9 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.