The Hose,air Duct, cataloged under National Stock Number 4720-01-399-1002, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is U.s. Rubber Tech, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-399-1002 |
| Primary Part Number | 0211-0400-0158 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | U.s. Rubber Tech, Inc. |
| Status | ACTIVE |
| Measuring Method and Length | 24.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 1.000 INCHES IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.030 INCHES NOMINAL IN |
| Inside Diameter | 4.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 4.000 INCHES NOMINAL BOTH ENDS IN |
| Material | STEEL REINFORCING WIRE |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR REINFORCING CORD |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR COVER |
| 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 |
|---|---|
| 0211-0400-0158 | Flexible Technologies Inc (USA) |
| 0211-0400-0158 PRIMARY | U.s. Rubber Tech, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 645A870H04 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-01-399-1002 is a Hose,air Duct, manufactured by U.s. Rubber Tech, Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-399-1002 has 2 manufacturer part numbers on file: 0211-0400-0158 (Flexible Technologies Inc), 0211-0400-0158 (U.s. Rubber Tech, Inc.).
Key specifications for 0211-0400-0158: Measuring Method and Length: 24.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 1.000 INCHES IN; Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS. 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.