The Valve,check, cataloged under National Stock Number 4820-01-356-4536, 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 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-356-4536 |
| Primary Part Number | 0018-4273-600 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 0018-4273-600 | Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc (USA) |
| Reference | Meaning |
|---|---|
| 0018-4273-600 | 3/2 Design control — primary reference U.S. Government activity |
| 0018-4273-600 | 5/9 Secondary reference Westfalia Separator Mineraloil Systems Gmbh |
| 0018-4273-600 | C/1 Advisory reference — outside the item-of-supply concept Gea Westfalia Separator Group Gmbh |
NSN 4820-01-356-4536 is a Valve,check, manufactured by Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-356-4536 has 1 manufacturer part number on file: 0018-4273-600 (Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc).
Key specifications for 0018-4273-600: Flow Control Device: DISK; Special Features: VALVE SIZE 0.750 IN. IN; Valve Operation Method: AUTOMATIC. 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.