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 6610-01-350-5590
NSN 5945-00-917-6760
NSN 5945-01-561-7030
NSN 5985-00-139-6025
NSN 5915-01-481-3489
NSN 5925-01-435-5869
NSN 6620-01-494-9567
NSN 5905-01-415-2902
NSN 5999-00-581-7828
NSN 6110-01-171-7348
NSN 5996-01-341-9130
NSN 5905-01-265-0307