The Valve,check, cataloged under National Stock Number 4820-01-575-3853, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Wheeler, Michael N Dba Phoenix Hydraulics and Controls (CAGE 5CTU4) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-575-3853 |
| Primary Part Number | CXDA-XCN/AP |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Wheeler, Michael N Dba Phoenix Hydraulics and Controls |
| Status | ACTIVE |
| 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 |
|---|---|
| CXDA-XCN/AP PRIMARY | Wheeler, Michael N Dba Phoenix Hydraulics and Controls (USA) |
| Reference | Meaning |
|---|---|
| PH260700 ITEM 3 | 5/9 Secondary reference Wheeler, Michael N Dba Phoenix Hydraulics and Controls |
| PH260790 ITEM 2 | 5/9 Secondary reference Wheeler, Michael N Dba Phoenix Hydraulics and Controls |
| CXDA-XCW | 5/9 Secondary reference Wheeler, Michael N Dba Phoenix Hydraulics and Controls |
NSN 4820-01-575-3853 is a Valve,check, manufactured by Wheeler, Michael N Dba Phoenix Hydraulics and Controls, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-575-3853 has 1 manufacturer part number on file: CXDA-XCN/AP (Wheeler, Michael N Dba Phoenix Hydraulics and Controls).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-659-3598. Verify interchangeability with system specifications before substitution.
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.