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 5950-00-238-9171
NSN 6110-00-161-4115
NSN 5925-01-043-4336
NSN 6645-01-367-7201
NSN 6240-01-234-1594
NSN 6645-01-449-1452
NSN 5915-00-205-2615
NSN 7035-00-064-7008
NSN 5965-01-563-6977
NSN 6135-01-408-9244
NSN 6130-01-322-5590
NSN 6685-01-077-5259