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 2925-01-310-3232
NSN 6685-00-965-0192
NSN 5990-01-501-5409
NSN 7035-01-466-1577
NSN 4140-01-332-6904
NSN 5999-01-611-0236
NSN 5935-00-594-7793
NSN 6110-01-493-8934
NSN 5915-01-032-3004
NSN 6110-01-063-7423
NSN 6320-01-220-2264
NSN 2925-01-142-0981