The Hose,air Duct, cataloged under National Stock Number 4720-00-640-0107, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-640-0107 |
| Primary Part Number | 3-3371-16-40-6 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Arrowhead Products Corp |
| Status | ACTIVE |
| Hose Weight | 3.800 OUNCES PER LINEAR FOOT OZ |
| Measuring Method and Length | 10.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 0.500 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Style Designator | FULLY CONVOLUTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.035 INCHES NOMINAL IN |
| Operating Pressure | 1.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | OZONE RESISTANT |
| Inside Diameter | 2.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 2.000 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 |
|---|---|
| 3-3371-16-40-6 PRIMARY | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 1A1-16-40-06 | 5/9 Secondary reference Federal-Mogul Corp Chassis Products Div |
| 111716XX4-14 | 5/1 Secondary reference Textron Aviation Inc |
| 1A1-16-40-6 | 5/9 Secondary reference Arrowhead Products Corp |
| 1A1 | 5/9 Secondary reference Federal-Mogul Corp Chassis Products Div |
| 1A1 | 5/9 Secondary reference Arrowhead Products Corp |
| 1A1-16-40-06 | 5/9 Secondary reference Arrowhead Products Corp |
| 111716XX4-14 | 5/9 Secondary reference Beechcraft Corporation Dba Textron Aviation |
NSN 4720-00-640-0107 is a Hose,air Duct, manufactured by Arrowhead Products Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-640-0107 has 1 manufacturer part number on file: 3-3371-16-40-6 (Arrowhead Products Corp).
2 possible matches (shared part number, not a government interchangeability claim): 6625-00-796-4851, 5340-01-280-7966. Verify interchangeability with system specifications before substitution.
Key specifications for 3-3371-16-40-6: Hose Weight: 3.800 OUNCES PER LINEAR FOOT OZ; Measuring Method and Length: 10.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 0.500 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.