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 5925-01-627-0576
NSN 4140-00-097-0167
NSN 5930-01-098-9281
NSN 5998-01-422-0933
NSN 6320-00-403-6003
NSN 2925-01-419-3805
NSN 5930-01-528-6098
NSN 6130-01-494-1396
NSN 5895-00-890-0409
NSN 5950-01-037-6910
NSN 5910-01-384-2665
NSN 5910-00-669-4948