The Valve,check, cataloged under National Stock Number 4820-01-659-3598, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sun Hydraulics Corporation. Government technical data includes 4 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 | 4820-01-659-3598 |
| Primary Part Number | CXDA-XCN/AP |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Operating Pressure | 350.0 BAR MAXIMUM SINGLE RESPONSE |
| Valve Size | 22.2 MILLIMETERS MM |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 91984723 | Thales Sa (FRA) |
| CXDA-XCN/AP PRIMARY | Sun Hydraulics Corporation (USA) |
NSN 4820-01-659-3598 is a Valve,check, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-659-3598 has 2 manufacturer part numbers on file: 91984723 (Thales Sa), CXDA-XCN/AP (Sun Hydraulics Corporation).
Key specifications for CXDA-XCN/AP: Operating Pressure: 350.0 BAR MAXIMUM SINGLE RESPONSE; Valve Size: 22.2 MILLIMETERS MM; Special Features: CAVITY T13-A;CAPACITY 80 L/MIN; WEIGHT 0.11 KG;CRACKING PRESSURE 30.0 PSI;SEAL MATERIAL BUNA-N KG; Surface Treatment: PASSIVATE. 4 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.