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 6135-00-583-3966
NSN 5960-01-199-6953
NSN 6685-01-471-7203
NSN 5945-01-657-0207
NSN 6610-00-170-6715
NSN 5985-00-539-3071
NSN 5998-01-226-2314
NSN 6135-00-862-5736
NSN 5965-01-379-7706
NSN 5930-01-315-2017
NSN 6145-01-519-8210
NSN 6685-01-441-2198