The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-407-9339, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-407-9339 |
| Primary Part Number | 0018-7728-650-3/4 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc |
| Status | ACTIVE |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU Y |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| End Connection Quantity | 2 |
| Valve Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Media for Which Designed | AIR OR OIL OR STEAM OR WATER |
| Maximum Inlet Pressure Rating | ERR-060 |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| 0018-7728-650-3/4 PRIMARY | Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc (USA) |
| Reference | Meaning |
|---|---|
| 251-A-3/4-E-BZ-3/4-1-0-000 | 5/9 Secondary reference Burkert Contromatic |
| 0018-5480-650-3/4IN | 5/9 Secondary reference U.S. Government activity |
| 0018-7728-650-3/4 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-407-9339 is a Valve,regulating,fluid Pressure, manufactured by Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-407-9339 has 1 manufacturer part number on file: 0018-7728-650-3/4 (Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc).
Key specifications for 0018-7728-650-3/4: Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU Y; Regulation Type: AUTOMATIC SINGLE STAGE; End Connection Quantity: 2. 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.