The Hose,air Duct, cataloged under National Stock Number 4720-01-199-2454, 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 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4720-01-199-2454 |
| Primary Part Number | 2CN |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Dura-Vent Corp |
| Status | ACTIVE |
| Hose Weight | 14.400 OUNCES PER LINEAR FOOT OZ |
| Measuring Method and Length | 144.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 4.500 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.125 INCHES NOMINAL IN |
| Operating Pressure | 13.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | ABRASION RESISTANT |
| Inside Diameter | 6.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.000 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 6.000 INCHES NOMINAL FIRST END IN |
| Material | PLASTIC POLYAMIDE NYLON SECOND PLY |
| Material | RUBBER CHLOROPRENE CLASS CR FIRST PLY |
| Material | RUBBER CHLOROPRENE CLASS CR REINFORCING CORD |
| Material | PLASTIC POLYAMIDE NYLON THIRD PLY |
| 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 |
|---|---|
| 2CN PRIMARY | Dura-Vent Corp (USA) |
| AF-2 6ID. X 12FT-1IN CUFF PRIMARY | Flex-Hose Company, Inc (USA) |
| FLEXKING DC6INID.X12FT-1IN.CUFFS PRIMARY | Hbd Industries, Inc Div Hbd/thermoid Inc (USA) |
| Reference | Meaning |
|---|---|
| CWC.6 IN DIA X 12 FT LG.1 IN CUF | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-199-2454 is a Hose,air Duct, manufactured by Dura-Vent Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-199-2454 has 3 manufacturer part numbers on file: 2CN (Dura-Vent Corp), AF-2 6ID. X 12FT-1IN CUFF (Flex-Hose Company, Inc), FLEXKING DC6INID.X12FT-1IN.CUFFS (Hbd Industries, Inc Div Hbd/thermoid Inc).
Key specifications for 2CN: Hose Weight: 14.400 OUNCES PER LINEAR FOOT OZ; Measuring Method and Length: 144.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 4.500 INCHES IN; Connection Style: ROUND FIRST END. 17 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.