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 5855-01-115-9014
NSN 6685-00-006-6142
NSN 5945-01-461-2141
NSN 5905-00-839-1595
NSN 5915-01-560-6795
NSN 5945-01-085-6446
NSN 5935-00-707-7988
NSN 6105-01-216-7146
NSN 6145-01-444-8665
NSN 6220-01-188-6962
NSN 6150-00-387-3045
NSN 6620-00-740-3699