The Coupling Assembly,tube,flexible, cataloged under National Stock Number 4730-01-333-3019, 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 Transdigm Inc Div Adelwiggins Group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-333-3019 |
| Primary Part Number | W701N201W44DE |
| Item Name | Coupling Assembly,tube,flexible |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Tube Outside Diameter for Which Designed | 2.750 INCHES NOMINAL IN |
| Style Designator | FLEXIBLE COUPLING ASSEMBLY |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024, T6 FED SPEC 1ST MATERIAL RESPONSE |
| Surface Treatment | ANODIZE AND PASSIVATE |
| Material | ALUMINUM ALLOY 2024 AND STEEL CORROSION RESISTING |
| 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 |
|---|---|
| W701N201W44DE PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| LE277-0008-0044 | The Boeing Company Div Legacy Am&m (USA) |
| VC513-44AE PRIMARY | Hydraflow (USA) |
| Reference | Meaning |
|---|---|
| LE277-0008 | 7/1 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
NSN 4730-01-333-3019 is a Coupling Assembly,tube,flexible, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-333-3019 has 3 manufacturer part numbers on file: W701N201W44DE (Transdigm Inc Div Adelwiggins Group), LE277-0008-0044 (The Boeing Company Div Legacy Am&m), VC513-44AE (Hydraflow).
Key specifications for W701N201W44DE: Tube Outside Diameter for Which Designed: 2.750 INCHES NOMINAL IN; Style Designator: FLEXIBLE COUPLING ASSEMBLY; Material Document and Classification: QQ-A-225/6, ALLOY 2024, T6 FED SPEC 1ST MATERIAL RESPONSE; Special Features: DYE MAGENTA COLOR. 5 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.