The Hose,air Duct, cataloged under National Stock Number 4720-00-555-2702, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 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); The Boeing Company Div Defense (CAGE 76301); Bemco, Inc (CAGE 05399) |
| Parameter | Value |
|---|---|
| NSN | 4720-00-555-2702 |
| Primary Part Number | AD842-35 |
| 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 |
|---|---|
| AD842-35 PRIMARY | Hbd Industries, Inc Div Hbd/thermoid Inc (USA) |
| 33-83142-35 | The Boeing Company Div Defense (USA) |
| BE165-35 | Bemco, Inc (USA) |
| Reference | Meaning |
|---|---|
| 33-83142 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 4720-00-555-2702 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 4720-00-555-2702 has 3 manufacturer part numbers on file: AD842-35 (Hbd Industries, Inc Div Hbd/thermoid Inc), 33-83142-35 (The Boeing Company Div Defense), BE165-35 (Bemco, Inc).
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.