The Hose,air Duct, cataloged under National Stock Number 4720-01-047-7103, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Arrowhead Products Corp. Government technical data includes 18 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-047-7103 |
| Primary Part Number | BACD40A28-004-6A11 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Arrowhead Products Corp |
| Status | ACTIVE |
| Measuring Method and Length | 4.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 7.000 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| 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 | 0.010 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Operating Pressure | 4.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Specification/standard Data | 81205-BACD40A MANUFACTURERS STANDARD |
| Nondefinitive Spec/std Data | 1 CLASS AND B GRADE AND 2 TYPE |
| Inside Diameter | 7.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 7.000 INCHES NOMINAL FIRST END IN |
| Material | COTTON AND FIBERGLASS THIRD PLY |
| Material | FIBERGLASS REINFORCING CORD |
| Material | STEEL SECOND PLY |
| Material | COTTON AND FIBERGLASS 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 |
| Part Number | Manufacturer |
|---|---|
| BACD40A28-004-6A11 | Arrowhead Products Corp (USA) |
| BACD40A28-004-6A11 | Bemco, Inc (USA) |
| BACD40A28-004-6A11 | Flexfab Llc (USA) |
| Reference | Meaning |
|---|---|
| BACD40A | D/9 Drawing number reference only U.S. Government activity |
| BACD40A28-004-6A11 | 5/2 Secondary reference U.S. Government activity |
| BACD40A28-004-6A11 | 5/2 Secondary reference U.S. Government activity |
| BACD40A28-4-6A11 | 5/9 Secondary reference U.S. Government activity |
| BACD40A28-004-6A11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-047-7103 is a Hose,air Duct, manufactured by Arrowhead Products Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-047-7103 has 3 manufacturer part numbers on file: BACD40A28-004-6A11 (Arrowhead Products Corp), BACD40A28-004-6A11 (Bemco, Inc), BACD40A28-004-6A11 (Flexfab Llc).
Key specifications for BACD40A28-004-6A11: Measuring Method and Length: 4.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 7.000 INCHES IN; Connection Style: ROUND FIRST END; Connection Type: SOFT FIRST END. 18 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.