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 5930-01-520-4989
NSN 6135-01-301-8776
NSN 5895-00-232-9451
NSN 5960-01-422-3269
NSN 4140-00-876-9285
NSN 6145-01-444-3548
NSN 6220-01-110-0728
NSN 5835-01-462-5983
NSN 5925-01-207-7995
NSN 5915-00-485-5170
NSN 5925-01-039-6220
NSN 5990-00-513-5328