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		                        | National Stock Number:
 4720-00-419-0686
 
 Federal Supply Class:
 4720
 
 National Item Identification Number:
 004190686
 
 Description:
 HOSE,AIR DUCT
 
 Detail:
 A flexible, tubular item of light wall construction. It must have single or multiple layers of nonmetallic material, but may contain metal wire reinforcement, foil type liner, and/or woven or braided cover. It is designed to convey under low pressure gaseous material, such as air and fumes, and light weight solid materials, such as dust, powders, and fibers. For items with couplings, see HOSE ASSEMBLY, AIR DUCT. For items of sleeve section design rated for high pressure use, see SLEEVE, SEAL, COUPLING. Excludes hose, nonmetallic.
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 Manufacturer Information:
 
 | 430071 | 1PQF4 | CAE USA INC. |  | 430071 | 36378 | RAYTHEON TECHNICAL SERVICES COMPANY |  | CWC2 1-2IN | 11871 | RECON/OPTICAL, INC. |  | CWC2 1/2 ID25FTLG | 81518 | FLEXAUST INC |  | CWC-2 1/2 | 81518 | FLEXAUST INC |  | C-2 1/2 | 84501 | FEDERAL HOSE MFG | 
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 Techincal Specification:
 
 | CONNECTION TYPE | PLAIN BOTH ENDS |  | CROSS-SECTIONAL SHAPE STYLE | ROUND |  | HOSE WEIGHT | 10.000 OUNCES PER LINEAR FOOT |  | INSIDE DIAMETER | 2.500 INCHES NOMINAL FIRST END |  | MATERIAL | COTTON  AND RUBBER CHLOROPRENE CLASS CR 1ST PLY |  | MATERIAL | COTTON  AND RUBBER CHLOROPRENE CLASS CR 2ND PLY |  | MATERIAL | STEEL REINFORCING WIRE |  | MEASURING METHOD AND LENGTH | 300.000 INCHES NOMINAL OVERALL |  | MINIMUM INSIDE BENDING RADIUS | 2.500 INCHES |  | STYLE DESIGNATOR | HELICALLY WOUND CONTINOUS WIRE SUPPORTED | 
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