The Valve Assy,normally, cataloged under National Stock Number 4820-01-463-8911, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rolls Royce Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-463-8911 |
| Primary Part Number | 23089529 |
| Item Name | Valve Assy,normally |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rolls Royce Corp |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 23089529 PRIMARY | Rolls Royce Corp (USA) |
| Reference | Meaning |
|---|---|
| 23078784 | 5/9 Secondary reference Rolls Royce Corp |
| 23085247 | 5/9 Secondary reference Rolls Royce Corp |
| 23066318 | 5/9 Secondary reference Rolls Royce Corp |
| 23087689 | 5/9 Secondary reference Rolls Royce Corp |
NSN 4820-01-463-8911 is a Valve Assy,normally, manufactured by Rolls Royce Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-463-8911 has 1 manufacturer part number on file: 23089529 (Rolls Royce Corp).
2 possible matches (shared part number, not a government interchangeability claim): 1680-01-581-7956, 4820-01-591-2733. Verify interchangeability with system specifications before substitution.
Key specifications for 23089529: Criticality Code Justification: AGAV; End Item Identification: ALLISON ENGINE (AE1107C). 1 specification is 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.
NSN 4820-01-463-8911 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.