The Hose,air Duct, cataloged under National Stock Number 4720-01-166-8728, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-166-8728 |
| Primary Part Number | WA123-1.25-64-6 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Arrowhead Products Corp |
| Status | ACTIVE |
| Hose Weight | 2.200 OUNCES PER LINEAR FOOT OZ |
| Measuring Method and Length | 16.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 0.312 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 22.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | ABRASION RESISTANT |
| Inside Diameter | 1.250 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 1.250 INCHES NOMINAL FIRST END IN |
| Material | FIBERGLASS AND RUBBER SYNTHETIC 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 |
| Part Number | Manufacturer |
|---|---|
| WA123-1.25-64-6 PRIMARY | Arrowhead Products Corp (USA) |
| WA121-1.25-64-6 | Arrowhead Products Corp (USA) |
NSN 4720-01-166-8728 is a Hose,air Duct, manufactured by Arrowhead Products Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-166-8728 has 2 manufacturer part numbers on file: WA123-1.25-64-6 (Arrowhead Products Corp), WA121-1.25-64-6 (Arrowhead Products Corp).
Key specifications for WA123-1.25-64-6: Hose Weight: 2.200 OUNCES PER LINEAR FOOT OZ; Measuring Method and Length: 16.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 0.312 INCHES IN; Connection Style: ROUND FIRST END. 13 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.