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 7035-01-145-5059
NSN 6135-00-087-5300
NSN 5996-01-287-7464
NSN 5935-00-643-5980
NSN 5895-01-267-1674
NSN 6685-00-067-3432
NSN 5935-01-442-5205
NSN 5905-01-453-1474
NSN 6130-01-491-0769
NSN 6145-01-192-5227
NSN 5990-00-554-0366
NSN 5945-01-399-7647