The Hose Assembly,air Duct, cataloged under National Stock Number 4720-00-445-0141, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-445-0141 |
| Primary Part Number | BE403-14 |
| Item Name | Hose Assembly,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Bemco, Inc |
| Status | ACTIVE |
| Measuring Method and Length | 3.500 INCHES NOMINAL OVERALL IN |
| Connection Type | COUPLING BOTH ENDS |
| Style Designator | SLEEVE SECTION |
| Coupling Style | EXTERNAL COUPLING CLAMP-LOCKING BOTH ENDS |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.040 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN |
| Inside Diameter | 3.500 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 |
NSN 4720-00-445-0141 is a Hose Assembly,air Duct, manufactured by Bemco, Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-445-0141 has 2 manufacturer part numbers on file: OBW147-14 (Flexfab Llc), BE403-14 (Bemco, Inc).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-203-9527. Verify interchangeability with system specifications before substitution.
Key specifications for BE403-14: Measuring Method and Length: 3.500 INCHES NOMINAL OVERALL IN; Connection Type: COUPLING BOTH ENDS; Style Designator: SLEEVE SECTION; Coupling Style: EXTERNAL COUPLING CLAMP-LOCKING BOTH ENDS. 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.