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 6610-00-130-6074
NSN 5920-01-225-7610
NSN 5950-00-665-5103
NSN 5915-01-473-0356
NSN 5925-01-484-6975
NSN 5930-01-095-0803
NSN 5999-01-383-0280
NSN 6110-00-263-6664
NSN 6645-00-246-4934
NSN 6135-01-223-3869
NSN 5905-01-245-8472
NSN 5905-00-038-1399