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 6685-01-543-8220
NSN 6240-01-467-9719
NSN 5990-00-350-2352
NSN 6685-00-136-3151
NSN 5960-01-449-1310
NSN 6645-00-397-2210
NSN 6130-00-332-6465
NSN 6150-00-528-4175
NSN 6610-01-322-7677
NSN 5925-00-484-4566
NSN 2925-00-620-7757
NSN 5965-01-299-4568