The Valve,check, cataloged under National Stock Number 4820-01-356-9771, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aventics Corp Div Aventics Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Aventics Corp Div Aventics Corporation (CAGE 7AJK0) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-356-9771 |
| Primary Part Number | R431004946 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aventics Corp Div Aventics Corporation |
| 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 |
|---|---|
| R431004946 PRIMARY | Aventics Corp Div Aventics Corporation (USA) |
| Reference | Meaning |
|---|---|
| CP59272-N | 5/9 Secondary reference Bosch Rexroth Corporation Div Bosch Rexroth |
| R431004946 | 5/9 Secondary reference Bosch Rexroth Corporation Div Industrial Hydraulics |
| 8391951 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| P59272 | 5/9 Secondary reference Bosch Rexroth Corporation Div Bosch Rexroth |
| R431004946 | 3/9 Design control — primary reference Bosch Rexroth Corporation Div Bosch Rexroth |
NSN 4820-01-356-9771 is a Valve,check, manufactured by Aventics Corp Div Aventics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-356-9771 has 1 manufacturer part number on file: R431004946 (Aventics Corp Div Aventics Corporation).
1 possible match (shared part number, not a government interchangeability claim): 1560-01-418-4166. 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.