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 6620-01-328-7059
NSN 5855-01-288-6341
NSN 6135-01-222-0703
NSN 6610-01-444-4001
NSN 5975-01-542-9066
NSN 5930-01-390-8926
NSN 7035-01-107-2811
NSN 6685-00-349-8943
NSN 6145-01-223-7763
NSN 6135-01-386-5709
NSN 6105-01-174-8398
NSN 5905-00-812-1779