A-A-59452A, COMMERCIAL ITEM DESCRIPTION (CID): HOSE, METAL (14-MAR-2005) [SUPERSEDING WW-H-1053A]

A-A-59452A, COMMERCIAL ITEM DESCRIPTION (CID): HOSE, METAL (14-MAR-2005) [SUPERSEDING WW-H-1053A]., This commercial item description covers flexible metal hose. Class 1 metal hose is intended for use as air ducts or speaking tubes and other applications requiring flexible hose but not for the conveyance of liquids. Class 2 metal hose is intended for use with carburetor preheating systems, exhaust connections, and other applications requiring flexible metal hose with heat-resistant properties up to 1200 Degrees F.