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 5905-01-417-5608
NSN 5975-01-297-6169
NSN 5905-01-600-3189
NSN 5855-00-763-2155
NSN 7035-01-528-7870
NSN 5960-01-458-6484
NSN 6610-01-304-3226
NSN 5975-00-196-0698
NSN 6110-01-607-8120
NSN 6105-01-425-1718
NSN 6650-00-221-7119
NSN 5930-00-596-1694