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 6240-01-624-7655
NSN 2925-01-463-8856
NSN 5985-00-644-9752
NSN 5960-00-170-9614
NSN 5905-01-480-9151
NSN 6320-00-483-0451
NSN 5998-01-054-2994
NSN 6320-01-416-9357
NSN 5910-01-408-8098
NSN 4140-00-578-7726
NSN 5990-00-404-2451
NSN 5950-00-323-7905