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 5999-01-514-9694
NSN 5855-00-310-2740
NSN 6650-01-237-3781
NSN 5999-00-136-7120
NSN 5910-00-233-5790
NSN 5935-01-005-0159
NSN 5975-01-556-6071
NSN 5999-00-547-3376
NSN 6240-01-556-7096
NSN 6240-00-269-9727
NSN 6610-00-946-6146
NSN 2925-00-553-8799