The Hose,air Duct, cataloged under National Stock Number 4720-00-780-7422, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Hbd Industries, Inc Div Hbd/thermoid Inc. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 — Hose and Flexible Tubing (FSG 47) |
| Manufacturers | Hbd Industries, Inc Div Hbd/thermoid Inc (CAGE 21868); Lockheed Martin Corporation Div Rms - Mitchel Field (CAGE 56232); Kirkhill, Inc. Dba Kirkhill Inc (CAGE 75345); Arrowhead Products Corp (CAGE 70628); Flexible Technologies Inc (CAGE 30299) |
| Parameter | Value |
|---|---|
| NSN | 4720-00-780-7422 |
| Primary Part Number | CEETS-12-216-8 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Hbd Industries, Inc Div Hbd/thermoid Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| CEETS-12-216-8 PRIMARY | Hbd Industries, Inc Div Hbd/thermoid Inc (USA) |
| NA0702-436 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| D1934-36 PRIMARY | Kirkhill, Inc. Dba Kirkhill Inc (USA) |
| 3-1664-24-216-8 PRIMARY | Arrowhead Products Corp (USA) |
| FT-234-12-108 PRIMARY | Flexible Technologies Inc (USA) |
| WC031-3.00-216-8 PRIMARY | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| FLEXFLYTE L-1 | 3/1 Design control — primary reference Flexible Technologies Inc |
| T-24-432-16 | 5/9 Secondary reference Lanxess Corporation |
| 0702 | D/9 Drawing number reference only Lockheed Martin Corporation Div Rms - Mitchel Field |
| IT 101 | 3/1 Design control — primary reference Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc |
| NEOFAB-2 | 3/1 Design control — primary reference Flexfab Llc |
| 1847430-436 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 4720-00-780-7422 is a Hose,air Duct, manufactured by Hbd Industries, Inc Div Hbd/thermoid Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-780-7422 has 6 manufacturer part numbers on file: CEETS-12-216-8 (Hbd Industries, Inc Div Hbd/thermoid Inc), NA0702-436 (Lockheed Martin Corporation Div Rms - Mitchel Field), D1934-36 (Kirkhill, Inc. Dba Kirkhill Inc), 3-1664-24-216-8 (Arrowhead Products Corp), FT-234-12-108 (Flexible Technologies Inc) and 1 more.
4 possible matches (shared part number, not a government interchangeability claim): 4720-00-814-0090, 5905-00-899-0861, 4720-00-950-9561. Verify interchangeability with system specifications before substitution.
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.