Tube has 60 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 5985-01-449-0939
NSN 5996-00-170-8060
NSN 6220-00-053-5599
NSN 5960-01-533-5162
NSN 5990-01-277-9753
NSN 6240-01-142-0729
NSN 6685-01-273-3139
NSN 6150-00-968-3700
NSN 6130-01-659-1268
NSN 6610-00-243-4331
NSN 6150-01-187-1789
NSN 6105-01-634-0322