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 36 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 5975-00-982-2299
NSN 6220-01-652-1722
NSN 5990-00-466-2952
NSN 5996-00-762-8740
NSN 5835-01-561-2959
NSN 5915-01-079-7401
NSN 6135-01-408-9244
NSN 6685-00-461-1902
NSN 5965-01-408-5990
NSN 6135-00-985-7887
NSN 6240-01-486-8317
NSN 6240-01-195-1750