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 6145-01-437-5505
NSN 6610-01-495-7122
NSN 6685-01-270-3427
NSN 6650-01-224-2555
NSN 5925-01-197-8406
NSN 5985-01-579-4534
NSN 6220-00-782-2058
NSN 5960-01-599-9821
NSN 5920-00-356-2892
NSN 5905-01-533-6814
NSN 6650-00-532-8125
NSN 6220-01-607-5843