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 5925-01-645-4909
NSN 5925-01-126-6288
NSN 5925-00-256-4884
NSN 5990-00-901-7823
NSN 6130-00-310-2644
NSN 6610-01-555-0337
NSN 5895-00-964-8989
NSN 5975-01-022-1746
NSN 6130-01-534-7059
NSN 6145-01-380-7573
NSN 5930-00-862-3515
NSN 5930-00-733-9649