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 4140-00-225-8586
NSN 6320-00-937-5625
NSN 2925-00-422-5159
NSN 6610-00-764-4015
NSN 5990-01-458-9576
NSN 7035-01-027-1718
NSN 5950-00-167-5035
NSN 6130-01-067-8107
NSN 6220-00-778-7213
NSN 5999-01-339-2442
NSN 6145-00-138-4658
NSN 7035-01-352-6235