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 6610-01-227-7221
NSN 6620-01-364-7461
NSN 6320-01-214-0350
NSN 5920-01-369-3857
NSN 5895-01-278-7817
NSN 6645-01-101-2877
NSN 6650-01-274-3828
NSN 5920-00-290-1844
NSN 5965-00-052-9184
NSN 5950-01-597-3850
NSN 6320-01-578-6006
NSN 6650-01-212-3964