The Disk,valve, cataloged under National Stock Number 4820-01-447-4141, 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6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-447-4141 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Pressure Rating | 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 140.0 FAHRENHEIT NOMINAL DEGF |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Style Designator | SOLID |
| Media for Which Designed | WATER |
| Material | STEEL AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 9978204 | 3/9 Design control — primary reference Flomatic Corp |
| 9978204 | 5/9 Secondary reference Flomatic Corporation |
| S2187PT4 | D/9 Drawing number reference only Flomatic Corp |
NSN 4820-01-447-4141 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-447-4141: Overall Height: 0.510 INCHES NOMINAL IN; Pressure Rating: 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 140.0 FAHRENHEIT NOMINAL DEGF; Outside Diameter: 4.000 INCHES NOMINAL IN. 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.