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 5950-01-467-8141
NSN 6610-00-816-4998
NSN 6685-01-508-7501
NSN 6610-01-521-4974
NSN 6220-01-175-8840
NSN 5905-00-145-5743
NSN 5990-00-900-4459
NSN 6105-01-413-9875
NSN 5915-00-619-1545
NSN 6650-00-531-9074
NSN 6240-00-926-7788
NSN 5920-01-388-2864