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 5998-01-173-0686
NSN 6685-01-360-5779
NSN 5910-01-356-6474
NSN 4140-00-361-4691
NSN 5920-01-627-9295
NSN 4140-00-802-2968
NSN 6650-01-212-3964
NSN 5945-01-338-3495
NSN 5895-01-117-5524
NSN 5998-00-902-7409
NSN 5999-00-730-1331
NSN 6610-00-983-4482