The Hose,air Duct, cataloged under National Stock Number 4720-01-424-9101, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Chase Supply, Inc. Dba Chase Defense Partners. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-424-9101 |
| Primary Part Number | FLX157564072012 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Chase Supply, Inc. Dba Chase Defense Partners |
| Status | ACTIVE |
| Measuring Method and Length | 180.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 16.000 INCHES IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Features Provided | ABRASION RESISTANT AND FUNGUS RESISTANT TREATMENT AND SCUFF STRIP AND OIL RESISTANT AND THERMAL INSULATED |
| Inside Diameter | 8.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 3.000 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 8.000 INCHES NOMINAL BOTH ENDS IN |
| Material | STEEL REINFORCING WIRE |
| Material | RUBBER CHLOROPRENE CLASS CR AND FIBERGLASS COVER |
| Material | RUBBER CHLOROPRENE CLASS CR AND FIBERGLASS LINER |
| 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 |
|---|---|
| 9167524-1 | Drs Environmental Systems Inc (USA) |
| FLX157564072012 PRIMARY | Chase Supply, Inc. Dba Chase Defense Partners (USA) |
| Reference | Meaning |
|---|---|
| X9167524-1 | 5/9 Secondary reference U.S. Government activity |
| X9167524-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 9167524-1 | 5/9 Secondary reference U.S. Government activity |
| FLX157564072012 | 3/9 Design control — primary reference Flexfab Llc |
NSN 4720-01-424-9101 is a Hose,air Duct, manufactured by Chase Supply, Inc. Dba Chase Defense Partners, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-424-9101 has 2 manufacturer part numbers on file: 9167524-1 (Drs Environmental Systems Inc), FLX157564072012 (Chase Supply, Inc. Dba Chase Defense Partners).
Key specifications for FLX157564072012: Measuring Method and Length: 180.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 16.000 INCHES IN; Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS. 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.