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 6685-00-949-8962
NSN 5945-01-092-0481
NSN 6610-01-502-7106
NSN 5925-01-495-1862
NSN 2925-01-300-6602
NSN 6620-01-373-0174
NSN 6650-01-035-1514
NSN 5895-01-529-7926
NSN 6620-01-369-5876
NSN 6610-00-432-5774
NSN 6645-00-004-8628
NSN 4140-01-358-7889