The Hose,air Duct, cataloged under National Stock Number 4720-01-454-7923, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Bull Hn Information Systems Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-454-7923 |
| Primary Part Number | BWT10-2180430A |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Bull Hn Information Systems Inc |
| Status | ACTIVE |
| Measuring Method and Length | 43.750 INCHES NOMINAL OVERALL IN |
| Special Test Features | WEIGHT OF ITEM: .405LBS LBS |
| Outside Diameter | 2.250 INCHES NOMINAL BOTH ENDS IN |
| Material | ALUMINUM LINER |
| 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 |
|---|---|
| BWT10-2180430A PRIMARY | Bull Hn Information Systems Inc (USA) |
| 7-511A21569-5 | The Boeing Company (USA) |
| 7-511A21569-5 | The Boeing Company Div Services (USA) |
| Reference | Meaning |
|---|---|
| BWT10-2180430A | 5/9 Secondary reference Honeywell Inc Honeywell Information Systems Inc North American Systems Operations Boston Computer Operations Framingham |
NSN 4720-01-454-7923 is a Hose,air Duct, manufactured by Bull Hn Information Systems Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-454-7923 has 3 manufacturer part numbers on file: BWT10-2180430A (Bull Hn Information Systems Inc), 7-511A21569-5 (The Boeing Company), 7-511A21569-5 (The Boeing Company Div Services).
Key specifications for BWT10-2180430A: Measuring Method and Length: 43.750 INCHES NOMINAL OVERALL IN; Special Test Features: WEIGHT OF ITEM: .405LBS LBS; Outside Diameter: 2.250 INCHES NOMINAL BOTH ENDS IN; Special Features: REINFORCING CLOTH LOCKED DOWN ONTO HELIX (POLYURETHANE/NYLON ONLY), (CUFF MATL EXTENDS TO COVER HELIX FOR SILICONE/FIBERGLASS). 4 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.