Tube has 36 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 5920-00-069-7624
NSN 6150-01-219-8696
NSN 6130-00-825-5320
NSN 5999-00-960-7155
NSN 5895-01-436-8337
NSN 6320-01-299-6367
NSN 5855-01-547-3875
NSN 2925-00-113-6146
NSN 5905-00-056-9074
NSN 6135-00-932-3136
NSN 6685-00-881-0762
NSN 5965-00-501-3265