The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-389-0328, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flexfab Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-389-0328 |
| Primary Part Number | NOR4009-0101 |
| Item Name | Hose Assembly,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Flexfab Llc |
| Status | ACTIVE |
| Measuring Method and Length | 240.000 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | PREFORMED BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.120 INCHES NOMINAL IN |
| Inside Diameter | 5.000 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 5.000 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS REINFORCING CORD |
| Material | RUBBER SILICONE CLASS Q COVER |
| Material | RUBBER SILICONE CLASS Q AND PLASTIC POLYESTER FIRST PLY |
| Material | RUBBER SILICONE CLASS Q AND PLASTIC POLYESTER FOURTH PLY |
| Material | RUBBER SILICONE CLASS Q AND PLASTIC POLYESTER SECOND PLY |
| Material | RUBBER SILICONE CLASS Q AND PLASTIC POLYESTER THIRD 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 |
|---|---|
| NOR4009-0101 PRIMARY | Flexfab Llc (USA) |
| DAA7228P113-101 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| Reference | Meaning |
|---|---|
| DAA7228P113 | D/9 Drawing number reference only Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
NSN 4720-01-389-0328 is a Hose Assembly,air Duct, manufactured by Flexfab Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-389-0328 has 2 manufacturer part numbers on file: NOR4009-0101 (Flexfab Llc), DAA7228P113-101 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for NOR4009-0101: Measuring Method and Length: 240.000 INCHES NOMINAL OVERALL IN; Connection Style: ROUND BOTH ENDS; Connection Type: PREFORMED BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 14 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.