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 6220-01-374-4897
NSN 6645-00-663-8111
NSN 5920-01-014-8195
NSN 5999-01-394-5186
NSN 5910-00-960-8096
NSN 5950-00-751-7529
NSN 6610-01-521-2438
NSN 4140-01-139-4877
NSN 5920-01-634-0250
NSN 5975-00-789-6209
NSN 5855-01-160-3802
NSN 5999-01-082-3855