The Hose,air Duct, cataloged under National Stock Number 4720-01-156-9600, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Aerometals, Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-156-9600 |
| Primary Part Number | 35-29316-2 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Aerometals, Inc. |
| Status | ACTIVE |
| Measuring Method and Length | 4.700 INCHES NOMINAL OVERALL IN |
| Criticality Code Justification | FEAT |
| Connection Type | PLAIN FIRST END |
| Style Designator | SLEEVE SECTION |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.180 INCHES NOMINAL IN |
| Inside Diameter | 2.250 INCHES NOMINAL FIRST END IN |
| Material | RUBBER CHLOROPRENE CLASS CR SINGLE PLY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 35-29316-2 | Aerometals, Inc. (USA) |
| 35-29316-2 | Flexfab Llc (USA) |
| Reference | Meaning |
|---|---|
| 35-29416-2 | 5/9 Secondary reference Aerometals, Inc. |
| 35-29316 | D/9 Drawing number reference only U.S. Government activity |
| 35-29316-2 | 3/2 Design control — primary reference U.S. Government activity |
| 35-29316-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-156-9600 is a Hose,air Duct, manufactured by Aerometals, Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-156-9600 has 2 manufacturer part numbers on file: 35-29316-2 (Aerometals, Inc.), 35-29316-2 (Flexfab Llc).
Key specifications for 35-29316-2: Measuring Method and Length: 4.700 INCHES NOMINAL OVERALL IN; Criticality Code Justification: FEAT; Connection Type: PLAIN FIRST END; Style Designator: SLEEVE SECTION. 8 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.