The Hose,air Duct, cataloged under National Stock Number 4720-00-306-3093, 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 15 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-306-3093 |
| Primary Part Number | WC031-2.50-164-6 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Arrowhead Products Corp |
| Status | ACTIVE |
| Measuring Method and Length | 41.000 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| 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 CLASS AND 2 TYPE |
| Inside Diameter | 2.500 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 2.500 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR THIRD PLY |
| Material | FIBERGLASS AND RESIN FIRST PLY |
| Material | STEEL CORROSION RESISTING REINFORCING WIRE |
| Material | FIBERGLASS AND RESIN 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 |
|---|---|
| WC031-2.50-164-6 PRIMARY | Arrowhead Products Corp (USA) |
| 92275-9 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| CEETS-10-164-6 PRIMARY | Hbd Industries, Inc Div Hbd/thermoid Inc (USA) |
| 3-1664-20-164-6 | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS8796 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 8AX3-20-164-6 | 5/9 Secondary reference Arrowhead Products Corp |
| NEOFAB-2 | 3/1 Design control — primary reference Flexfab Llc |
| FLEXFLYTE L-1 | 3/1 Design control — primary reference Flexible Technologies Inc |
| MIL-H-8796 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-00-306-3093 is a Hose,air Duct, manufactured by Arrowhead Products Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-306-3093 has 4 manufacturer part numbers on file: WC031-2.50-164-6 (Arrowhead Products Corp), 92275-9 (Northrop Grumman Systems Corporation), CEETS-10-164-6 (Hbd Industries, Inc Div Hbd/thermoid Inc), 3-1664-20-164-6 (Arrowhead Products Corp).
1 possible match (shared part number, not a government interchangeability claim): 2530-00-906-4085. Verify interchangeability with system specifications before substitution.
Key specifications for WC031-2.50-164-6: Measuring Method and Length: 41.000 INCHES NOMINAL OVERALL IN; Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 15 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.