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 5895-01-204-8433
NSN 5985-01-370-3566
NSN 5935-01-258-5867
NSN 5960-00-234-5961
NSN 5975-01-304-3887
NSN 5950-01-107-5529
NSN 6320-01-019-1028
NSN 5930-01-231-9366
NSN 6685-01-126-3061
NSN 6220-01-335-7701
NSN 6110-01-360-6507
NSN 6135-00-613-1068