Tube has 90 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 5910-01-394-3729
NSN 6130-00-675-0076
NSN 6620-01-098-2960
NSN 6650-00-724-8258
NSN 6220-00-023-4344
NSN 5915-01-084-9864
NSN 6320-00-583-3104
NSN 6135-01-142-2417
NSN 6150-00-139-3646
NSN 5855-01-354-7291
NSN 5935-01-512-8333
NSN 6220-01-614-0811