The Servovalve,hydraulic, cataloged under National Stock Number 4820-01-418-9502, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-418-9502 |
| Primary Part Number | 90084-7 |
| Item Name | Servovalve,hydraulic |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Port Diameter | 0.500 INCHES NOMINAL IN |
| Port Quantity | 2 |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Operating Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 180.0 FAHRENHEIT MAXIMUM DEGF |
| O-Ring Material | RUBBER SYNTHETIC |
| Supply Pressure | 18.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | SOLENOID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 90084-7 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 90084 | 5/9 Secondary reference United Technologies Corp Hamilton Sundstrand Corp |
| 90084-7 | 5/9 Secondary reference United Technologies Corp Hamilton Sundstrand Corp |
| 90084 | D/9 Drawing number reference only Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 4820-01-418-9502 is a Servovalve,hydraulic, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-418-9502 has 1 manufacturer part number on file: 90084-7 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
4 possible matches (shared part number, not a government interchangeability claim): 4320-01-430-3860, 4820-01-476-1925, 5820-01-479-1633. Verify interchangeability with system specifications before substitution.
Key specifications for 90084-7: Port Diameter: 0.500 INCHES NOMINAL IN; Port Quantity: 2; Operating Pressure: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Operating Temp Rating: -40.0 FAHRENHEIT MINIMUM AND 180.0 FAHRENHEIT MAXIMUM DEGF. 7 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.