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 5996-01-415-3291
NSN 5915-01-325-1401
NSN 6650-00-496-8762
NSN 6620-00-684-6771
NSN 5985-01-380-3906
NSN 5950-00-890-4387
NSN 5930-01-413-6888
NSN 5920-00-757-1900
NSN 6240-01-041-7477
NSN 5920-01-227-1877
NSN 6685-00-527-6545
NSN 5945-01-195-1404