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 4140-01-326-1725
NSN 6320-00-831-2227
NSN 5990-01-471-7858
NSN 5996-01-313-6726
NSN 6220-01-496-8312
NSN 6240-01-082-2241
NSN 6685-01-443-3284
NSN 5985-01-251-5104
NSN 6110-01-260-4969
NSN 5905-00-016-3709
NSN 6105-01-338-2391
NSN 6240-01-573-3316