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 5996-01-545-2368
NSN 6135-00-497-0491
NSN 5935-01-506-7201
NSN 5965-01-641-4354
NSN 6650-01-420-3155
NSN 6150-00-900-4984
NSN 6685-01-311-5435
NSN 5915-01-113-7872
NSN 5920-01-315-9534
NSN 5975-00-594-8857
NSN 4140-01-102-6145
NSN 6240-00-948-1108