The Valve,check, cataloged under National Stock Number 4820-01-421-8760, 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 3 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-421-8760 |
| Primary Part Number | CXFA-XDN-DBT |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| 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 |
|---|---|
| D-452-099 ITEM B | Pacific Powertech Llc (USA) |
| D-452-096 ITEM C | Pacific Powertech Llc (USA) |
| CXFA-XDN-DBT PRIMARY | Sun Hydraulics Corporation (USA) |
| D-452-101 ITEM B | Pacific Powertech Llc (USA) |
| D-452-100 ITEM B | Pacific Powertech Llc (USA) |
NSN 4820-01-421-8760 is a Valve,check, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-421-8760 has 5 manufacturer part numbers on file: D-452-099 ITEM B (Pacific Powertech Llc), D-452-096 ITEM C (Pacific Powertech Llc), CXFA-XDN-DBT (Sun Hydraulics Corporation), D-452-101 ITEM B (Pacific Powertech Llc), D-452-100 ITEM B (Pacific Powertech Llc).
Key specifications for CXFA-XDN-DBT: Style Designator: STRAIGHT THRU; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Valve Operation Method: AUTOMATIC. 3 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.