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 6685-01-087-0264
NSN 6145-01-477-2654
NSN 6240-00-737-2775
NSN 5975-00-455-2431
NSN 6685-00-232-3239
NSN 5935-01-652-6403
NSN 2925-01-251-7386
NSN 4140-01-391-1922
NSN 6240-01-282-0983
NSN 6105-01-611-0232
NSN 5990-00-991-2035
NSN 5930-00-781-4000