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 60 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 5996-01-222-5316
NSN 5895-01-562-9136
NSN 6620-01-629-4045
NSN 5950-00-111-4781
NSN 6240-01-132-1634
NSN 4140-01-152-2672
NSN 6685-00-768-7633
NSN 5905-01-308-3254
NSN 5985-01-634-0635
NSN 6650-00-191-9000
NSN 5895-01-330-8806
NSN 5935-01-305-1995