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 5905-01-211-9371
NSN 5910-01-159-9296
NSN 6685-01-543-4464
NSN 6645-01-041-3533
NSN 5950-01-299-2000
NSN 5985-01-406-7387
NSN 5996-01-216-6116
NSN 5945-01-253-8022
NSN 5925-00-167-7513
NSN 5905-01-106-2339
NSN 6610-01-076-4800
NSN 7035-00-922-5700