Tube has 60 fins per ft; conforms to mil-h-16235c
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 6220-00-251-5600
NSN 5855-01-286-9928
NSN 5985-01-468-5355
NSN 5905-00-125-3517
NSN 6135-01-226-4071
NSN 5950-00-758-8408
NSN 5935-01-598-5965
NSN 6145-00-258-6977
NSN 6320-00-553-8427
NSN 6610-01-462-7154
NSN 5960-01-531-9108
NSN 5945-01-379-5846