Metal is hot phosphoric acid treated and given 2 coats of primer before painted
A heating device which is connected to a central source of hot water or steam, for the purpose of distributing heat, by means of a motor-driven fan, throughout a room or building. By introducing outside air, it may also be utilized for ventilating purposes or a combination of heating and ventilating.
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 5920-00-133-5400
NSN 5945-01-429-8942
NSN 6685-00-317-4319
NSN 5965-00-080-2045
NSN 6240-01-023-7720
NSN 6685-01-168-8893
NSN 6220-01-004-8909
NSN 7035-01-287-1516
NSN 5930-00-498-6995
NSN 6135-00-973-5632
NSN 6135-00-062-5080
NSN 5945-00-526-0310