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 6105-01-446-7245
NSN 5990-00-889-9634
NSN 5905-01-197-5427
NSN 6105-01-152-2800
NSN 5895-01-550-9058
NSN 5925-01-110-3691
NSN 5835-01-568-7796
NSN 5855-01-330-3669
NSN 5925-01-287-3086
NSN 5855-01-634-0259
NSN 5835-00-313-1788
NSN 6240-01-614-7618