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 5950-00-057-5962
NSN 6685-00-256-6591
NSN 6620-01-147-5615
NSN 5910-01-618-0386
NSN 5895-01-439-8107
NSN 6620-01-462-1625
NSN 5915-01-085-8746
NSN 5975-00-856-5246
NSN 5925-00-718-7530
NSN 5975-01-033-6578
NSN 5935-01-386-3168
NSN 5935-01-398-1226