Magnetic permability 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 6110-01-513-9358
NSN 5930-01-248-6082
NSN 4140-01-046-0119
NSN 5960-00-773-8013
NSN 5915-00-538-3557
NSN 5996-00-548-6482
NSN 5895-01-101-6578
NSN 5975-01-034-2948
NSN 5950-01-302-2040
NSN 5910-01-434-8866
NSN 7035-01-369-1445
NSN 5960-01-658-9538