The Hose,air Duct, cataloged under National Stock Number 4720-01-181-6690, 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 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-181-6690 |
| Primary Part Number | 713426-1.00-017-4 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Arrowhead Products Corp |
| Status | ACTIVE |
| Measuring Method and Length | 4.250 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 1.000 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.020 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Operating Pressure | 6.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS |
| Inside Diameter | 1.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.000 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 1.000 INCHES NOMINAL FIRST END IN |
| Material | PLASTIC POLYAMIDE NYLON AND RUBBER SILICONE CLASS Q FIRST PLY |
| Material | PLASTIC POLYAMIDE NYLON SECOND 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 |
|---|---|
| 713426-1.00-017-4 PRIMARY | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| C9601-4-017S | 3/2 Design control — primary reference U.S. Government activity |
| C9601 | D/9 Drawing number reference only U.S. Government activity |
NSN 4720-01-181-6690 is a Hose,air Duct, manufactured by Arrowhead Products Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-181-6690 has 1 manufacturer part number on file: 713426-1.00-017-4 (Arrowhead Products Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-279-3056, 4720-01-279-3057. Verify interchangeability with system specifications before substitution.
Key specifications for 713426-1.00-017-4: Measuring Method and Length: 4.250 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 1.000 INCHES IN; Connection Style: ROUND FIRST END; Connection Type: SOFT FIRST END. 12 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.