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 5895-00-452-0333
NSN 6110-01-026-1236
NSN 6110-01-454-3545
NSN 6685-01-613-8131
NSN 5990-01-443-2931
NSN 5930-00-739-4745
NSN 5990-01-175-2597
NSN 5895-01-211-8074
NSN 5996-01-578-6955
NSN 5925-01-415-4738
NSN 6135-00-209-6918
NSN 5990-01-307-4489