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 5925-00-988-6837
NSN 6145-00-504-0362
NSN 6135-01-633-8502
NSN 6685-00-430-5471
NSN 5910-01-633-9963
NSN 5999-00-784-5452
NSN 5925-01-135-7038
NSN 5855-00-902-3069
NSN 6105-00-556-8461
NSN 5905-00-278-5764
NSN 6650-01-645-7892
NSN 5999-01-138-7437