The Valve,vacuum Regulating, cataloged under National Stock Number 4820-01-229-4199, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-229-4199 |
| Item Name | Valve,vacuum Regulating |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISK, FLAT |
| First End Thread Series Designator | UNF |
| First End Thread Direction | RIGHT-HAND |
| Absolute Pressure Range | +0.1 TO 300.0 |
| Body Style | SINGLE CONNECTION, STRAIGHT FLOW |
| First End Seat Angle in Deg | 45.0 |
| First End Thread Class | 3A A |
| First End Style Designator | FLARED |
| End Connection Quantity | 1 |
| Body Material | COPPER ALLOY |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Outside Diameter Tube Accommodated | 0.125 INCHES NOMINAL IN |
| Media for Which Designed | AIR |
| First End Nominal Thread Size | 0.313 INCHES IN |
| 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 |
|---|---|
| MPS-2 | 3/2 Design control — primary reference U.S. Government activity |
| 9352671 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 4820-01-229-4199 is a Valve,vacuum Regulating, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5930-01-315-8037. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-229-4199: Flow Control Device: DISK, FLAT; First End Thread Series Designator: UNF; First End Thread Direction: RIGHT-HAND; Absolute Pressure Range: +0.1 TO 300.0. 15 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.