The Valve,check, cataloged under National Stock Number 4820-01-550-6726, 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 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-550-6726 |
| Primary Part Number | CXCD-XFN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Style Designator | SCREW-IN CARTRIDGE |
| 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 |
|---|---|
| CXCD-XFN PRIMARY | Sun Hydraulics Corporation (USA) |
| 133755 REV H ITEM 32 | Kongsberg Maritime Sweden Ab (SWE) |
| SE55055 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| Reference | Meaning |
|---|---|
| 10373996 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 133755 REV H ITEM 32 | 5/9 Secondary reference Rolls-Royce Ab |
NSN 4820-01-550-6726 is a Valve,check, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-550-6726 has 3 manufacturer part numbers on file: CXCD-XFN (Sun Hydraulics Corporation), 133755 REV H ITEM 32 (Kongsberg Maritime Sweden Ab), SE55055 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales).
Key specifications for CXCD-XFN: Style Designator: SCREW-IN CARTRIDGE; Special Features: CRACKING PRESSURE SEVEN BAR: NON-ADJUSTABLE; BUNA-N SEAL; Part Name Assigned by Controlling Agency: SIDE TO NOSE CHECK VALVE. 1 specification is 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.