A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.
NSN 5999-01-432-2147
NSN 5960-00-372-4876
NSN 6130-01-599-4213
NSN 5915-01-152-3486
NSN 5935-01-500-1374
NSN 5905-01-504-5006
NSN 6220-00-229-4704
NSN 5965-01-050-7055
NSN 6145-01-224-4084
NSN 6135-00-985-7887
NSN 5855-00-361-0167
NSN 6110-01-599-1917