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 7035-00-490-0485
NSN 5895-01-177-4379
NSN 2925-01-465-3437
NSN 6110-01-090-0804
NSN 7035-01-528-7870
NSN 5905-00-664-4218
NSN 5925-01-237-8112
NSN 5996-01-592-9955
NSN 6620-01-058-3539
NSN 6105-01-227-4277
NSN 6610-00-972-0869
NSN 7035-00-295-0451