The Hose,air Duct, cataloged under National Stock Number 4720-01-440-6542, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Bemco, Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-440-6542 |
| Primary Part Number | BE 723 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Bemco, Inc |
| Status | ACTIVE |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | FULLY CONVOLUTED |
| Cross-Sectional Shape Style | OVAL |
| Inside Diameter | 6.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.250 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS SINGLE 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 |
|---|---|
| BE 723 PRIMARY | Bemco, Inc (USA) |
| Reference | Meaning |
|---|---|
| 24-2257 | D/9 Drawing number reference only U.S. Government activity |
| 27-10384-1 | 5/2 Secondary reference U.S. Government activity |
| 27-10384 | 7/1 Vendor item drawing reference U.S. Government activity |
| OBS-27-10384-1 | 5/9 Secondary reference Flexfab Llc |
NSN 4720-01-440-6542 is a Hose,air Duct, manufactured by Bemco, Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-440-6542 has 1 manufacturer part number on file: BE 723 (Bemco, Inc).
Key specifications for BE 723: Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS; Style Designator: FULLY CONVOLUTED; Cross-Sectional Shape Style: OVAL. 7 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.