The Cartridge,stop-Check Valve, cataloged under National Stock Number 4820-01-219-9250, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-219-9250 |
| Item Name | Cartridge,stop-Check Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Port Diameter | 1.563 INCHES NOMINAL IN |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Valve Size | 2.000 INCHES IN |
| Maximum Operating Temp | 225.0 FAHRENHEIT DEGF |
| Material | COPPER ALLOY |
| Thread Size and Series/type Designator | 2-11 1/2 NPT |
| 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 |
|---|---|
| PL838 | 5/2 Secondary reference U.S. Government activity |
| 565-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-219-9250 is a Cartridge,stop-Check Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-219-9250: Port Diameter: 1.563 INCHES NOMINAL IN; Operating Pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Valve Size: 2.000 INCHES IN; Maximum Operating Temp: 225.0 FAHRENHEIT DEGF. 6 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.