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 5910-01-448-2324
NSN 6610-00-626-8523
NSN 6620-00-270-3275
NSN 5930-00-161-5101
NSN 5920-00-185-3824
NSN 5935-01-530-5468
NSN 6150-01-056-5288
NSN 5950-01-406-4603
NSN 5935-01-290-3851
NSN 5975-00-392-2890
NSN 6150-01-518-9819
NSN 6320-00-242-3300