Magnetic permeability shall be less than 1.2 before fabrication and not greater than 2.0 after fabrication as measured in a 200 oersted field; tube has 90 fins per ft
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 5998-00-454-0293
NSN 5945-01-196-4656
NSN 5835-01-250-2939
NSN 5960-00-705-9094
NSN 5910-00-532-7091
NSN 6135-00-733-9665
NSN 5990-01-408-6554
NSN 6150-01-065-1023
NSN 5935-01-634-0668
NSN 5915-01-414-5205
NSN 5950-00-842-5043
NSN 6610-01-216-9542