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 5910-01-491-4234
NSN 5915-01-578-7264
NSN 6105-01-339-9433
NSN 5996-00-064-2041
NSN 6620-01-181-0303
NSN 6110-00-313-2769
NSN 6240-00-845-9098
NSN 5905-01-447-2806
NSN 5910-00-146-5774
NSN 2925-01-055-9705
NSN 6135-01-373-2518
NSN 5965-01-607-5753