The Hose,air Duct, cataloged under National Stock Number 4720-01-448-4199, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-448-4199 |
| Primary Part Number | AD777B24-12 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Bemco, Inc |
| Status | ACTIVE |
| Hose Weight | 0.050 OUNCES PER LINEAR FOOT OZ |
| Measuring Method and Length | 3.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 3.000 INCHES IN |
| Connection Type | PLAIN BOTH ENDS |
| Style Designator | SLEEVE SECTION |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.044 INCHES NOMINAL IN |
| Operating Pressure | 45.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS |
| Inside Diameter | 6.000 INCHES NOMINAL FIRST END IN |
| Material | PLASTIC POLYAMIDE NYLON AND RUBBER SILICONE CLASS Q FIRST PLY |
| Material | PLASTIC POLYAMIDE NYLON AND RUBBER SILICONE CLASS Q COVER |
| Material | PLASTIC POLYAMIDE NYLON AND RUBBER SILICONE CLASS Q REINFORCING CORD |
| 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 |
|---|---|
| AD777B24-12 | Bemco, Inc (USA) |
| Reference | Meaning |
|---|---|
| LS1611A24-12 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-448-4199 is a Hose,air Duct, manufactured by Bemco, Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-448-4199 has 1 manufacturer part number on file: AD777B24-12 (Bemco, Inc).
Key specifications for AD777B24-12: Hose Weight: 0.050 OUNCES PER LINEAR FOOT OZ; Measuring Method and Length: 3.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 3.000 INCHES IN; Connection Type: PLAIN BOTH ENDS. 12 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.