The Hose,air Duct, cataloged under National Stock Number 4720-00-442-9246, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-442-9246 |
| Primary Part Number | PS440000026-003 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Measuring Method and Length | 3.750 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND FIRST END |
| Connection Type | PREFORMED FIRST END |
| Style Designator | FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 10.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 5.008 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.250 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 5.008 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SINGLE 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 |
|---|---|
| PS440000026-003 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 4720-00-442-9246 is a Hose,air Duct, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-442-9246 has 1 manufacturer part number on file: PS440000026-003 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for PS440000026-003: Measuring Method and Length: 3.750 INCHES NOMINAL OVERALL IN; Connection Style: ROUND FIRST END; Connection Type: PREFORMED FIRST END; Style Designator: FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS. 10 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.