The Valve,vacuum Regulating, cataloged under National Stock Number 4820-01-279-9179, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker Hannifin Corp Dba Pneutronics. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-279-9179 |
| Primary Part Number | 2H3-12 |
| Item Name | Valve,vacuum Regulating |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker Hannifin Corp Dba Pneutronics |
| Status | ACTIVE |
| Supplementary Features | P/O M8 800 ASSY; U/O ACFT ENGINE MODELS LYCOMING 0.235-C/-L; 0-320-E; 0360-A/-B/-C; 0-540-A/-B/-D |
| Media for Which Designed | AIR |
| 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 |
|---|---|
| 2H3-12 PRIMARY | Parker Hannifin Corp Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 13000-03 | 5/9 Secondary reference Daher Aerospace - Ex Socata |
NSN 4820-01-279-9179 is a Valve,vacuum Regulating, manufactured by Parker Hannifin Corp Dba Pneutronics, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-279-9179 has 1 manufacturer part number on file: 2H3-12 (Parker Hannifin Corp Dba Pneutronics).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-604-0784. Verify interchangeability with system specifications before substitution.
Key specifications for 2H3-12: Supplementary Features: P/O M8 800 ASSY; U/O ACFT ENGINE MODELS LYCOMING 0.235-C/-L; 0-320-E; 0360-A/-B/-C; 0-540-A/-B/-D; Media for Which Designed: AIR. 2 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.