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 5905-00-866-4742
NSN 5960-01-423-2511
NSN 6135-00-973-5632
NSN 5965-01-466-1154
NSN 5985-01-097-3400
NSN 6610-01-322-4331
NSN 6150-01-062-3608
NSN 6135-00-182-7008
NSN 5950-00-918-3687
NSN 5985-00-696-7989
NSN 5920-00-809-5231
NSN 6110-01-375-4701