Conforms to mil-h-16235c, tube has 60 fins per ft.
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 5990-00-244-8684
NSN 4140-01-352-2924
NSN 5960-01-341-8484
NSN 5930-00-245-4261
NSN 5996-01-615-4224
NSN 6150-01-387-4904
NSN 5965-01-449-9343
NSN 6320-01-190-1397
NSN 6110-00-906-1514
NSN 5965-00-201-7479
NSN 6110-01-293-5722
NSN 7035-01-103-3342