A cast iron or sheet metal plate designed to be installed in a boiler, heater, stove, or furnace flue pipe to control the draft, and/or in an air duct to control the passage of air. Excludes valve, butterfly.
NSN 5895-01-651-7701
NSN 6240-01-363-0477
NSN 5965-00-078-7615
NSN 5905-01-137-8439
NSN 5965-01-643-1951
NSN 5855-01-250-2421
NSN 5999-01-419-2278
NSN 5920-01-426-8517
NSN 6150-00-867-5239
NSN 5935-01-220-6220
NSN 5920-01-294-7511
NSN 6320-00-593-0379