The Hose,air Duct, cataloged under National Stock Number 4720-01-330-0644, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Flexaust Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-330-0644 |
| Primary Part Number | 4110-4 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — No Item Name Available |
| Manufacturer | Flexaust Inc |
| Status | ACTIVE |
| Material | RUBBER CHLOROPRENE CLASS CR FIRST PLY |
| Measuring Method and Length | 4.000 INCHES NOMINAL OVERALL IN |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Inside Diameter | 4.000 INCHES NOMINAL FIRST END IN |
| Material | STEEL REINFORCING WIRE |
| Cross-Sectional Shape Style | ROUND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2633334G004 | L3harris Technologies, Inc. (USA) |
| 4110-4 PRIMARY | Flexaust Inc (USA) |
NSN 4720-01-330-0644 is a Hose,air Duct, manufactured by Flexaust Inc, classified under FSC 4720 (No Item Name Available). Status: active.
NSN 4720-01-330-0644 has 2 cross-referenced part numbers: 2633334G004 (L3harris Technologies, Inc.), 4110-4 (Flexaust Inc).
There are 6 known substitutes for 4720-01-330-0644: 5950-00-647-8182, 5310-01-078-4038, 4520-01-184-5157 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4110-4: Material: RUBBER CHLOROPRENE CLASS CR FIRST PLY; Measuring Method and Length: 4.000 INCHES NOMINAL OVERALL IN; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED; Inside Diameter: 4.000 INCHES NOMINAL FIRST END IN. 7 total characteristics are documented in the Federal Logistics Information System.