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 5905-00-206-0526
NSN 4140-00-411-6848
NSN 5999-01-254-4926
NSN 6110-00-065-2580
NSN 5996-01-435-7886
NSN 5975-00-270-6759
NSN 5920-01-386-3188
NSN 7035-01-471-8349
NSN 7035-01-316-7860
NSN 6110-01-514-0271
NSN 6620-01-575-9561
NSN 6240-00-793-7969