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 6110-01-360-8911
NSN 5965-01-455-7747
NSN 5930-01-308-5335
NSN 5996-01-521-6845
NSN 6135-01-556-7318
NSN 5996-01-240-2925
NSN 5910-01-450-7154
NSN 6150-01-421-4028
NSN 6685-00-316-1157
NSN 5965-01-362-9609
NSN 6135-01-461-2567
NSN 6105-01-088-7044