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 5855-01-100-3272
NSN 6145-01-627-9429
NSN 5915-00-948-4553
NSN 7035-01-527-1236
NSN 5950-01-443-6364
NSN 6135-00-203-9645
NSN 5915-01-207-0013
NSN 5965-00-147-3070
NSN 5835-01-123-8305
NSN 6610-00-915-3215
NSN 5905-01-591-6317
NSN 7035-01-627-3521