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 6110-00-377-9160
NSN 5935-00-912-2331
NSN 2925-00-056-7112
NSN 7035-00-763-6180
NSN 5965-00-417-8182
NSN 5996-01-654-1719
NSN 6130-01-350-3585
NSN 6105-00-466-9880
NSN 5965-01-122-2750
NSN 6135-01-276-5402
NSN 6685-01-076-6180
NSN 5855-00-896-4047