The Hose,air Duct, cataloged under National Stock Number 4720-01-645-4838, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Dura-Vent Corp. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-645-4838 |
| Primary Part Number | 0315-0400-0109 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Dura-Vent Corp |
| Status | ACTIVE |
| Measuring Method and Length | 200.0 FEET NOMINAL EXCLUDING END FITTINGS FT |
| Style Designator | FULLY CONVOLUTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 13.0 MILLIMETERS NOMINAL MM |
| Inside Diameter | 4.0 INCHES NOMINAL BOTH ENDS IN |
| Material | STEEL REINFORCING WIRE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE COVER |
| 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 |
|---|---|
| 420-4000 | Marine Products Intl (USA) |
| 0315-0400-0109 PRIMARY | Dura-Vent Corp (USA) |
| 0315-0400-0109 PRIMARY | Flexible Technologies Inc (USA) |
NSN 4720-01-645-4838 is a Hose,air Duct, manufactured by Dura-Vent Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-645-4838 has 3 manufacturer part numbers on file: 420-4000 (Marine Products Intl), 0315-0400-0109 (Dura-Vent Corp), 0315-0400-0109 (Flexible Technologies Inc).
Key specifications for 0315-0400-0109: Measuring Method and Length: 200.0 FEET NOMINAL EXCLUDING END FITTINGS FT; Style Designator: FULLY CONVOLUTED; Cross-Sectional Shape Style: ROUND; Wall Thickness: 13.0 MILLIMETERS NOMINAL MM. 7 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.