The Hose,air Duct, cataloged under National Stock Number 4720-01-440-7526, 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 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-01-440-7526 |
| Primary Part Number | WSS94246 |
| 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 | 17.000 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | PREFORMED BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Inside Diameter | 8.250 INCHES NOMINAL FIRST END IN |
| End Overall Length | 2.000 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 8.250 INCHES NOMINAL BOTH ENDS IN |
| 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 |
|---|---|
| WSS94246 | Chase Supply, Inc. Dba Chase Defense Partners (USA) |
| WSS94246 | Carrier Corp (USA) |
| Reference | Meaning |
|---|---|
| WSS94246 | 5/9 Secondary reference Flexfab Llc |
| WSS94246 | 5/9 Secondary reference Ame International L.l.c. |
| WSS94246 | 3/2 Design control — primary reference U.S. Government activity |
| WSS94246 | 5/9 Secondary reference Echelon Supply and Service, Inc. |
NSN 4720-01-440-7526 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 4720-01-440-7526 has 2 manufacturer part numbers on file: WSS94246 (Chase Supply, Inc. Dba Chase Defense Partners), WSS94246 (Carrier Corp).
Key specifications for WSS94246: Measuring Method and Length: 17.000 INCHES NOMINAL OVERALL IN; Connection Style: ROUND BOTH ENDS; Connection Type: PREFORMED BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 8 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.