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 6610-01-285-4673
NSN 6645-00-943-9063
NSN 5935-01-634-0668
NSN 6220-01-406-2970
NSN 5950-00-242-2645
NSN 6650-00-283-0978
NSN 5960-00-825-6442
NSN 5930-01-068-3641
NSN 5905-00-144-8471
NSN 5998-01-069-5106
NSN 5999-01-431-4427
NSN 5915-00-206-0086