The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-528-5563, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Caley Ocean Systems Ltd. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-528-5563 |
| Primary Part Number | 2164/71 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Caley Ocean Systems Ltd |
| Status | ACTIVE |
| Operating Pressure and Type | 4600.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 2164/71 | Caley Ocean Systems Ltd (GBR) |
| Reference | Meaning |
|---|---|
| SD16/3ACYG4P28LP28LP28LRK | 3/9 Design control — primary reference Mcelroy Manufacturing Inc |
NSN 4820-01-528-5563 is a Valve,linear,directional Control, manufactured by Caley Ocean Systems Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-528-5563 has 1 manufacturer part number on file: 2164/71 (Caley Ocean Systems Ltd).
Key specifications for 2164/71: Operating Pressure and Type: 4600.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Part Name Assigned by Controlling Agency: DISTRIBUTOR SD16; End Item Identification: DBC004E; Valve Operation Method: MANUAL. 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.