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 5905-01-563-0796
NSN 5999-01-573-8246
NSN 7035-01-107-2811
NSN 6145-00-452-4501
NSN 5930-01-433-6671
NSN 6220-01-498-9966
NSN 6685-01-303-2211
NSN 5835-01-370-4292
NSN 5965-01-013-0290
NSN 6135-01-442-0888
NSN 6220-00-969-4651
NSN 6110-01-646-6227