The Hose,air Duct, cataloged under National Stock Number 4720-00-629-9558, 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 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-00-629-9558 |
| Primary Part Number | BE074-7 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Bemco, Inc |
| Status | ACTIVE |
| Measuring Method and Length | 28.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 3.360 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | PREFORMED FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 3.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.562 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 3.000 INCHES NOMINAL FIRST END IN |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR SECOND PLY |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR FOURTH PLY |
| Material | STEEL AND COPPER ALLOY FIRST 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 |
|---|---|
| BE074-7 | Bemco, Inc (USA) |
| 3-3567-7 | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 47-615-074-7 | 5/9 Secondary reference U.S. Government activity |
| FT-1132-7 | 3/9 Design control — primary reference Automation Industries Inc Flexible Tubing Div |
| 47-615-074-7 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-00-629-9558 is a Hose,air Duct, manufactured by Bemco, Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-629-9558 has 2 manufacturer part numbers on file: BE074-7 (Bemco, Inc), 3-3567-7 (Arrowhead Products Corp).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-359-2102. Verify interchangeability with system specifications before substitution.
Key specifications for BE074-7: Measuring Method and Length: 28.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 3.360 INCHES IN; Connection Style: ROUND FIRST END; Connection Type: PREFORMED FIRST END. 13 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.