The Hose,air Duct, cataloged under National Stock Number 4720-01-548-8207, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-548-8207 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 23.750 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 2.500 INCHES IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Material Document and Classification | MIL-Y-1140 MIL SPEC SINGLE MATERIAL RESPONSE REINFORCING CORD |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.150 INCHES MAXIMUM IN |
| Outside Diameter | 2.800 INCHES MAXIMUM BOTH ENDS IN |
| Operating Pressure | 10.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS |
| Inside Diameter | 2.500 INCHES NOMINAL BOTH ENDS IN |
| End Overall Length | 1.125 INCHES MINIMUM AND 1.375 INCHES MAXIMUM BOTH ENDS IN |
| End Inside Diameter | 2.469 INCHES MINIMUM AND 2.531 INCHES MAXIMUM BOTH ENDS IN |
| Material | STEEL REINFORCING WIRE |
| Material | FIBERGLASS REINFORCING CORD |
| Material | RUBBER SILICONE CLASS Q AND FIBERGLASS ALL PLIES |
| 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 |
|---|---|
| NAS1375A10SH095 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1369 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4720-01-548-8207 is a Hose,air Duct, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-548-8207: Measuring Method and Length: 23.750 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 2.500 INCHES IN; Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS. 16 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.