The Hose,air Duct, cataloged under National Stock Number 4720-01-324-2140, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flexfab Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 — Hose and Flexible Tubing (FSG 47) |
| Manufacturers | Flexfab Llc (CAGE 16632); Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc (CAGE 26831); Arrowhead Products Corp (CAGE 70628) |
| Parameter | Value |
|---|---|
| NSN | 4720-01-324-2140 |
| Primary Part Number | DOU1071480018 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Flexfab Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| DOU1071480018 PRIMARY | Flexfab Llc (USA) |
| IT-5038S24-18A PRIMARY | Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc (USA) |
| 713686S24-18A PRIMARY | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 7D0106S24-18A | 3/2 Design control — primary reference U.S. Government activity |
| 7D0106 | D/9 Drawing number reference only U.S. Government activity |
| DOU1071 | D/9 Drawing number reference only Flexfab Llc |
NSN 4720-01-324-2140 is a Hose,air Duct, manufactured by Flexfab Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-324-2140 has 3 manufacturer part numbers on file: DOU1071480018 (Flexfab Llc), IT-5038S24-18A (Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc), 713686S24-18A (Arrowhead Products Corp).
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.