The Valve,calibrated Flow, cataloged under National Stock Number 4820-00-425-7283, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-425-7283 |
| Item Name | Valve,calibrated Flow |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | PISTON, SPRING LOADED |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | OPTIONAL END |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 225.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Media for Which Designed | HYDRAULIC OIL |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 3/8-18 NPT FIRST END |
| Valve Discharge Flow Rate | 0.5 GALLONS PER MINUTE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 663 3-8D2-0-5 | 5/9 Secondary reference U.S. Government activity |
| 16A101P5 | 5/9 Secondary reference U.S. Government activity |
| 6631-3/8S2-0.5 | 3/9 Design control — primary reference U.S. Government activity |
| 2438870-1 | 7/2 Vendor item drawing reference Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
NSN 4820-00-425-7283 is a Valve,calibrated Flow, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-425-7283: Flow Control Device: PISTON, SPRING LOADED; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 14 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.
NSN 4820-00-425-7283 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.