Tube has 90 fins per ft., conforms to mil-h-16235c
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 5855-00-832-9341
NSN 5990-00-295-0968
NSN 6130-01-595-6760
NSN 5925-01-218-8302
NSN 6135-00-128-1633
NSN 2925-00-862-8550
NSN 6610-01-010-3159
NSN 5935-01-129-9443
NSN 5945-00-196-0400
NSN 6645-00-454-0930
NSN 6650-01-356-3123
NSN 5945-01-093-7890