The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-251-0663, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-251-0663 |
| Primary Part Number | BK466851 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd |
| Status | ACTIVE |
| 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 |
|---|---|
| BK466851 | Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd (GBR) |
| BK466851 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| 5029209-031 | 7/1 Vendor item drawing reference U.S. Government activity |
| BK466851 | 5/9 Secondary reference Vickers Inc |
| 5029209-031-105 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-251-0663 is a Valve,linear,directional Control, manufactured by Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-251-0663 has 2 manufacturer part numbers on file: BK466851 (Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd), BK466851 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for BK466851: Special Features: GREY CAST IRON ASTM A48 C1 40 BODY;STEEL AISI 1213-12L14 CONTROL LEVER;MOLDED PHENOLIC PLASTIC CONTROL KNOB;MAXIMUM OPERATING PRESSURE 5000.0 PSI;TEMPERATURE RANGE MINUS 58 DEG TO PLUS 125 DEG FAHRENHEIT;O/A LENGTH 4.688 IN.;OD 2.010 IN.;O/A THICKNESS 1.870 IN. IN. 0 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.