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 5960-00-258-9292
NSN 5935-00-883-0381
NSN 5998-00-224-9077
NSN 5855-01-369-5037
NSN 6620-01-463-1373
NSN 4140-01-321-3310
NSN 5998-01-558-6784
NSN 5835-00-106-2120
NSN 6650-01-406-5322
NSN 5915-00-311-8936
NSN 5996-00-079-1268
NSN 6135-01-576-9616