The Coupling Assembly,tank Valve,hos, cataloged under National Stock Number 4730-01-497-3731, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings 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. 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 | 4730-01-497-3731 |
| Primary Part Number | 23057422 |
| Item Name | Coupling Assembly,tank Valve,hos |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rolls Royce Corp |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 23057422 PRIMARY | Rolls Royce Corp (USA) |
NSN 4730-01-497-3731 is a Coupling Assembly,tank Valve,hos, manufactured by Rolls Royce Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-497-3731 has 1 manufacturer part number on file: 23057422 (Rolls Royce Corp).
1 possible match (shared part number, not a government interchangeability claim): 6550-01-670-7060. Verify interchangeability with system specifications before substitution.
Key specifications for 23057422: Criticality Code Justification: AGAV; Special Features: KNOWN AS; FITTING, STRUT, LH PG; End Item Identification: KC130J AIRCRAFT ENGINE AE2100D3. 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.
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.