The Valve,check, cataloged under National Stock Number 4820-01-667-0805, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-667-0805 |
| Primary Part Number | CXHA-XFN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| 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 |
|---|---|
| CXHA-XFN PRIMARY | Sun Hydraulics Corporation (USA) |
NSN 4820-01-667-0805 is a Valve,check, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-667-0805 has 1 manufacturer part number on file: CXHA-XFN (Sun Hydraulics Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-711-0964. Verify interchangeability with system specifications before substitution.
Key specifications for CXHA-XFN: Operating Pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: CONTROL NOT ADJUSTABLE, CRACKING PRESSURE 100 PSI, SEAL MATERIAL BUNA-N, SERIES 3, CAPACITY 80 GPM, CAVITY T-16A, VALVE HEX SIZE 1 1/4 IN., MODEL WEIGHT 0.98 POUNDS, FREE-FLOW, NOSE TO SIDE CHECK VALVES ARE ON/OFF CIRCUIT COMPONENTS THAT ALLOW FREE FLOW FROM THE INLET PORT 1 TO THE OUTLET PORT 2 AND BLOCK FLOW IN THE OPPOSITE DIRECTION A; Part Name Assigned by Controlling Agency: FREE FLOW NOSE TO SIDE 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.