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 6105-01-406-4844
NSN 6110-00-087-0227
NSN 6645-01-177-2766
NSN 6650-00-217-6292
NSN 5965-00-246-2182
NSN 6320-00-646-3311
NSN 6130-00-160-9914
NSN 5930-00-993-8119
NSN 5945-00-549-2774
NSN 6135-01-204-8712
NSN 5945-01-127-6004
NSN 5925-00-009-9818