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 6145-01-159-5792
NSN 4140-01-400-3610
NSN 6610-01-603-0703
NSN 5990-00-008-8466
NSN 5990-01-558-4536
NSN 5855-01-446-1936
NSN 6650-00-028-2218
NSN 5925-00-369-7747
NSN 6610-01-412-3318
NSN 6145-01-477-3504
NSN 6620-01-266-8894
NSN 6645-01-263-7273