The Valve,check, cataloged under National Stock Number 4820-01-575-8455, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Wheeler, Michael N Dba Phoenix Hydraulics and Controls. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-575-8455 |
| Primary Part Number | CKCB-XCW |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Wheeler, Michael N Dba Phoenix Hydraulics and Controls |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Type | THREADED CARTRIDGE FIRST END |
| Style Designator | SCREW-IN CARTRIDGE |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Disk Loading Method | SPRING |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING BODY |
| Opening Pressure Setting | 30.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| CKCB-XCW PRIMARY | Wheeler, Michael N Dba Phoenix Hydraulics and Controls (USA) |
| PH260700 ITEM 2 | Wheeler, Michael N Dba Phoenix Hydraulics and Controls (USA) |
NSN 4820-01-575-8455 is a Valve,check, manufactured by Wheeler, Michael N Dba Phoenix Hydraulics and Controls, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-575-8455 has 2 manufacturer part numbers on file: CKCB-XCW (Wheeler, Michael N Dba Phoenix Hydraulics and Controls), PH260700 ITEM 2 (Wheeler, Michael N Dba Phoenix Hydraulics and Controls).
Key specifications for CKCB-XCW: Flow Control Device: DISK; Connection Type: THREADED CARTRIDGE FIRST END; Style Designator: SCREW-IN CARTRIDGE; Operating Pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 9 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.