The Disk,valve, cataloged under National Stock Number 4820-00-386-0809, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-386-0809 |
| Primary Part Number | 3229855 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Shank Diameter | 0.250 INCHES NOMINAL IN |
| Flange Diameter | 0.625 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Seat Angle | 30.0 DEGREES NOMINAL |
| Material | STEEL |
| 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 |
|---|---|
| 3229855 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3229855 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 4820-00-386-0809 is a Disk,valve, manufactured by Hatch & Kirk, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-386-0809 has 1 manufacturer part number on file: 3229855 (Hatch & Kirk, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2990-00-678-3242. Verify interchangeability with system specifications before substitution.
Key specifications for 3229855: Shank Diameter: 0.250 INCHES NOMINAL IN; Flange Diameter: 0.625 INCHES NOMINAL IN; Overall Height: 3.875 INCHES NOMINAL IN; Style Designator: POPPET. 5 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.