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 5996-00-230-5550
NSN 5990-00-678-0062
NSN 5960-01-215-0992
NSN 6645-01-283-5387
NSN 5835-00-177-2970
NSN 6650-01-469-5651
NSN 5930-01-524-0642
NSN 6240-00-527-8614
NSN 5950-01-534-8528
NSN 5945-01-125-5798
NSN 6620-01-408-4464
NSN 5960-01-487-2175