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 5945-01-337-8562
NSN 5920-01-217-8379
NSN 6610-01-463-5368
NSN 6620-01-152-0936
NSN 4140-01-227-1342
NSN 6650-01-500-4549
NSN 6105-00-041-3736
NSN 5996-00-034-6024
NSN 5895-00-056-0398
NSN 5920-00-144-8031
NSN 2925-00-580-4931
NSN 6110-01-022-9980