The Hose,air Duct, cataloged under National Stock Number 4720-01-322-5745, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-322-5745 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 33.000 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.009 INCHES NOMINAL IN |
| Operating Pressure | 16.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | CHEMICAL RESISTANT AND FUNGUS RESISTANT TREATMENT AND OIL RESISTANT AND OZONE RESISTANT |
| Inside Diameter | 2.530 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.000 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 2.530 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR SECOND PLY |
| Material | STEEL REINFORCING WIRE |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR FIRST PLY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 12344209 | 5/1 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| MIL-H-62028 | 4/1 Identification reference U.S. Government activity |
| M6202823404433 | 2/2 Government specification standardization U.S. Government activity |
NSN 4720-01-322-5745 is a Hose,air Duct, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-322-5745: Measuring Method and Length: 33.000 INCHES NOMINAL OVERALL IN; Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 14 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.