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 5925-00-351-0541
NSN 5950-00-998-1274
NSN 5945-00-558-9155
NSN 6135-00-010-5275
NSN 6645-01-219-5911
NSN 6650-00-968-5700
NSN 5910-00-341-6114
NSN 4140-01-510-1522
NSN 6220-00-279-1508
NSN 5905-01-172-3261
NSN 5915-01-278-8351
NSN 6685-01-246-4265