Magnetic permeability shall be less than 1.2 before fabrication and not greater than 2.0 after fabrication as measured in a 200 oersted field; tube has 60 fins per ft
A heat transferring unit utilizing a separate source of steam or hot water as the heat transfer medium. It consists of finned parallel tubes joined together by a header or headers and is designed for installation in the ducts of a forced air circulating system. It may be provided with a flanged outer casing to facilitate mounting of the unit in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.
Classification: Air heaters and hot air distributors, not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel
NSN 5999-01-392-2232
NSN 6610-01-156-9314
NSN 5950-01-334-0024
NSN 4140-01-263-0665
NSN 5905-01-227-0935
NSN 5935-01-484-9635
NSN 6650-01-551-1547
NSN 6685-00-969-0217
NSN 6320-01-607-0347
NSN 6145-01-511-9322
NSN 5915-01-527-1064
NSN 5905-01-196-2070