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 5960-01-098-8437
NSN 6620-01-408-0825
NSN 6685-01-500-1810
NSN 5835-01-566-5462
NSN 6685-01-252-8887
NSN 5835-01-340-4895
NSN 5895-01-512-1030
NSN 2925-01-386-7392
NSN 5960-01-597-9591
NSN 5996-00-276-5480
NSN 6610-00-683-9881
NSN 6645-00-149-1100