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 5996-00-237-6307
NSN 6610-00-841-8221
NSN 6150-00-132-1640
NSN 6685-01-181-2273
NSN 6110-00-135-0878
NSN 6620-01-528-7510
NSN 6610-01-189-3001
NSN 5945-01-218-4022
NSN 6650-01-207-0829
NSN 6135-01-343-1592
NSN 5998-00-707-5781
NSN 6645-01-154-2228