Tube has 36 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 5915-01-207-4500
NSN 6110-00-280-2753
NSN 5999-00-421-4139
NSN 5895-01-157-3077
NSN 5950-01-455-9129
NSN 5998-01-398-0673
NSN 6110-00-054-2527
NSN 6240-00-280-8502
NSN 5910-01-218-1619
NSN 6130-00-012-3070
NSN 6685-01-447-5633
NSN 6145-00-563-1103