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 6685-01-318-5042
NSN 5965-00-554-4138
NSN 5855-01-017-7366
NSN 5985-00-133-9316
NSN 2925-00-824-2186
NSN 5920-00-405-1363
NSN 6150-01-634-0575
NSN 5920-00-814-2328
NSN 5960-01-201-6316
NSN 5975-01-274-5344
NSN 5990-00-497-9234
NSN 5835-01-035-2976