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 6110-00-164-7062
NSN 6320-00-270-8222
NSN 5920-01-050-0471
NSN 5920-01-134-5445
NSN 6685-01-158-6081
NSN 6320-01-491-0327
NSN 5975-01-211-7705
NSN 5895-00-835-1222
NSN 5835-01-485-0210
NSN 5925-00-233-7523
NSN 6220-00-676-0904
NSN 5925-01-525-2763