The Valve,check, cataloged under National Stock Number 4820-01-483-3134, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rolls-Royce Corporation. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-483-3134 |
| Primary Part Number | 23095516 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rolls-Royce 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 |
|---|---|
| 23095516 PRIMARY | Rolls-Royce Corporation (USA) |
| 23083768 PRIMARY | Rolls-Royce Corporation (USA) |
| 23066246 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 23066246 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 4820-01-483-3134 is a Valve,check, manufactured by Rolls-Royce Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-483-3134 has 3 manufacturer part numbers on file: 23095516 (Rolls-Royce Corporation), 23083768 (Rolls-Royce Corporation), 23066246 (Rolls-Royce Corporation).
1 possible match (shared part number, not a government interchangeability claim): 2840-01-497-4059. Verify interchangeability with system specifications before substitution.
Key specifications for 23095516: Special Features: CHECK VALVE, ALTERNATE FOR 4830-01-446-6559 PN 23058174, TO 79-20-00-06-30; End Item Identification: C130-J HERCULES ACFT. 0 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.