The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-063-9949, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Aero International, Llc Dba Ams Engineered Solutions. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-063-9949 |
| Primary Part Number | 2143665-3 |
| Item Name | Hose Assembly,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Aero International, Llc Dba Ams Engineered Solutions |
| Status | ACTIVE |
| Measuring Method and Length | 168.000 INCHES NOMINAL OVERALL IN |
| Connection Type | COUPLING FIRST END |
| Coupling Style | EXTERNAL COUPLING CLAMP-LOCKING FIRST END |
| Cross-Sectional Shape Style | ROUND |
| 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 |
|---|---|
| 2143665-3 PRIMARY | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| Reference | Meaning |
|---|---|
| 2143665-3 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| 2143665-3 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 4720-01-063-9949 is a Hose Assembly,air Duct, manufactured by Aero International, Llc Dba Ams Engineered Solutions, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-063-9949 has 1 manufacturer part number on file: 2143665-3 (Aero International, Llc Dba Ams Engineered Solutions).
Key specifications for 2143665-3: Measuring Method and Length: 168.000 INCHES NOMINAL OVERALL IN; Connection Type: COUPLING FIRST END; Coupling Style: EXTERNAL COUPLING CLAMP-LOCKING FIRST END; Cross-Sectional Shape Style: ROUND. 4 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.