The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-441-8679, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-441-8679 |
| Item Name | Valve,calibrated Flow |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 5.312 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| End Connection Quantity | 2 |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| First End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | PLASTIC TETRAFLUOROETHYLENE SEAT |
| Media for Which Designed | WATER |
| Maximum Inlet Pressure Rating | ERR-060 |
| 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 |
|---|---|
| 7100 | 3/9 Design control — primary reference Taco Inc. Div Heat Transfer Products Division |
NSN 4820-01-441-8679 is a Valve,calibrated Flow, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-441-8679: Flow Control Device: BALL; Body Style: STRAIGHT THRU; Face to Face Distance: 5.312 INCHES NOMINAL IN; First End Style Designator: PLAIN. 12 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.