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 6240-01-551-8612
NSN 5996-00-089-6042
NSN 6130-01-014-5419
NSN 7035-01-551-6927
NSN 6145-01-571-2565
NSN 6220-01-300-9448
NSN 5935-01-132-8727
NSN 6685-01-165-6997
NSN 6220-01-548-7969
NSN 6620-00-996-2512
NSN 6650-01-113-7563
NSN 4140-00-274-9638