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 6320-01-162-5977
NSN 6620-01-197-7665
NSN 5960-01-269-6045
NSN 6145-01-453-6768
NSN 5998-01-555-4630
NSN 5835-01-519-3834
NSN 6685-01-009-8690
NSN 5905-01-240-0345
NSN 5905-01-194-2743
NSN 5930-00-067-6682
NSN 6220-01-397-7805
NSN 6220-01-444-6516