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 5855-01-620-3063
NSN 6110-01-200-7447
NSN 5925-01-122-4905
NSN 6150-01-221-4105
NSN 5930-00-445-0872
NSN 5835-01-077-6278
NSN 5965-01-061-3724
NSN 5999-01-474-9654
NSN 5999-00-883-4722
NSN 5835-01-088-4676
NSN 5930-00-068-5236
NSN 6610-00-003-4986