The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-034-4313, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flexible Technologies Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-034-4313 |
| Primary Part Number | FT7536-1 |
| Item Name | Hose Assembly,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Flexible Technologies Inc |
| Status | ACTIVE |
| Measuring Method and Length | 45.125 INCHES NOMINAL OVERALL IN |
| Connection Type | PREFORMED FIRST END |
| Style Designator | FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN |
| Operating Pressure | 2.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 26.000 INCHES NOMINAL FIRST END IN |
| Material | FIBERGLASS SINGLE PLY |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | H |
| Part Number | Manufacturer |
|---|---|
| FT7536-1 PRIMARY | Flexible Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| MAL90048-1 | 7/9 Vendor item drawing reference U.S. Government activity |
| MAL90048-1 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
NSN 4720-01-034-4313 is a Hose Assembly,air Duct, manufactured by Flexible Technologies Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-034-4313 has 1 manufacturer part number on file: FT7536-1 (Flexible Technologies Inc).
Key specifications for FT7536-1: Measuring Method and Length: 45.125 INCHES NOMINAL OVERALL IN; Connection Type: PREFORMED FIRST END; Style Designator: FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS; Cross-Sectional Shape Style: ROUND. 9 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.
NSN 4720-01-034-4313 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.