The Valve Assy,oil Tank, cataloged under National Stock Number 4820-01-463-8873, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rolls Royce Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Valve Assy,oil Tank |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (CAGE A0170); Rolls Royce Corp (CAGE 1E0F1) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-463-8873 |
| Primary Part Number | 23083749 |
| Item Name | Valve Assy,oil Tank |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rolls Royce Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 23062185 | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA) |
| 23083749 PRIMARY | Rolls Royce Corp (USA) |
| 23083749 | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA) |
| Reference | Meaning |
|---|---|
| 23062185 | 5/9 Secondary reference Rolls Royce Corp |
NSN 4820-01-463-8873 is a Valve Assy,oil Tank, manufactured by Rolls Royce Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-463-8873 has 3 manufacturer part numbers on file: 23062185 (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site), 23083749 (Rolls Royce Corp), 23083749 (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-698-9605. 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.