The Servovalve,direct Drive, cataloged under National Stock Number 4820-01-565-0643, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-565-0643 |
| Item Name | Servovalve,direct Drive |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 24.0 DC |
| 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 |
|---|---|
| D634-1003-P40KA6M0VSM2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-565-0643 is a Servovalve,direct Drive, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-565-0643: Voltage in Volts and Current Type: 24.0 DC; Pressure Rating: ERR-060; Special Features: 26GPM FLOW AT 1000 PSI, 10GPM FLOW AT 150 PSI; FLUOROCARBON SEAL; 7-PIN ELECTRICAL CONNECTOR; PORM 10VDC INPUT COMMAND; DRIVEN BY A PERMANENT MAGNET LINEAR FORCE MOTOR; PRESSURE INDEPENENT DYNAMIC PERFORMANCE; LOW HYSTERESIS AND THRESHOLD; STANDARDIZED SPOOL POSITION MONITORING SIGNAL WITH LOW RESIDUAL RIPPLE; ELECTRIC CLOSED LOOP SPOOL POSIITON CONTROL; NULL ADJUSTMENT VDC. 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.