The Hose,air Duct, cataloged under National Stock Number 4720-00-720-0185, 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 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-00-720-0185 |
| Primary Part Number | WC033-2.50-176-6 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Arrowhead Products Corp |
| Status | ACTIVE |
| Measuring Method and Length | 44.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 1.250 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Material Document and Classification | QQ-W-423,FORM 1,COMP 302,COND 3 FED SPEC SINGLE MATERIAL RESPONSE SECOND PLY |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 16.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Specification/standard Data | 81349-MIL-H-8796 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 2 TYPE AND 2 CLASS |
| Inside Diameter | 2.500 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.550 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 2.500 INCHES NOMINAL FIRST END 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 |
|---|---|
| WC033-2.50-176-6 PRIMARY | Arrowhead Products Corp (USA) |
| CEETS-10-176-6 PRIMARY | Hbd Industries, Inc Div Hbd/thermoid Inc (USA) |
| GD10A10C88 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| GD10A10-88 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| SAE-AS8796 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MIL-H-8796 | 5/9 Secondary reference U.S. Government activity |
| FLEXFLYTE L-1 | 3/1 Design control — primary reference Flexible Technologies Inc |
| NEOFAB-2 | 3/1 Design control — primary reference Flexfab Llc |
NSN 4720-00-720-0185 is a Hose,air Duct, manufactured by Arrowhead Products Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-720-0185 has 3 manufacturer part numbers on file: WC033-2.50-176-6 (Arrowhead Products Corp), CEETS-10-176-6 (Hbd Industries, Inc Div Hbd/thermoid Inc), GD10A10C88 (Northrop Grumman Systems Corporation).
Key specifications for WC033-2.50-176-6: Measuring Method and Length: 44.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 1.250 INCHES IN; Connection Style: ROUND FIRST END; Connection Type: SOFT 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.