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 5910-00-243-8102
NSN 6130-01-445-5878
NSN 5920-01-469-2349
NSN 5985-01-649-1447
NSN 6110-01-572-9083
NSN 5915-00-248-5824
NSN 5935-00-419-3841
NSN 6130-00-266-1051
NSN 6620-00-144-7201
NSN 5999-01-067-8087
NSN 6105-01-419-8471
NSN 5835-00-733-9145