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 5999-01-200-6833
NSN 6685-00-098-6500
NSN 5960-00-879-1930
NSN 6610-01-425-1523
NSN 6610-00-350-1091
NSN 6645-01-391-9820
NSN 5990-00-386-4951
NSN 5990-01-116-2181
NSN 5985-01-157-9426
NSN 5915-00-584-3512
NSN 5855-01-549-1507
NSN 5975-00-099-9312