The Hose,air Duct, cataloged under National Stock Number 4720-00-950-9561, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-00-950-9561 |
| Primary Part Number | 1847430PC311 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Measuring Method and Length | 36.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 1.250 INCHES IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | PREFORMED BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.030 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Operating Pressure | 3.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS |
| Inside Diameter | 2.500 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 2.500 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR SECOND PLY |
| Material | STEEL REINFORCING WIRE |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR FIRST 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 |
|---|---|
| D1933-11 | Kirkhill, Inc. Dba Kirkhill Inc (USA) |
| FT234-10-19 | Flexible Technologies Inc (USA) |
| 1847430PC311 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 3-1664-20-38-8 | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 0702 | D/9 Drawing number reference only Lockheed Martin Corporation Div Rms - Mitchel Field |
| 1847430-311 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| NA0702APC311 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| T-20-76-16 | 5/9 Secondary reference Lanxess Corporation |
NSN 4720-00-950-9561 is a Hose,air Duct, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-950-9561 has 4 manufacturer part numbers on file: D1933-11 (Kirkhill, Inc. Dba Kirkhill Inc), FT234-10-19 (Flexible Technologies Inc), 1847430PC311 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3-1664-20-38-8 (Arrowhead Products Corp).
Key specifications for 1847430PC311: Measuring Method and Length: 36.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 1.250 INCHES IN; Connection Style: ROUND BOTH ENDS; Connection Type: PREFORMED BOTH ENDS. 14 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.