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 7035-00-946-2642
NSN 6240-01-310-9380
NSN 5835-00-946-2656
NSN 5985-01-463-9112
NSN 6105-01-653-6829
NSN 4140-01-327-4567
NSN 6620-01-052-2773
NSN 5960-00-628-2003
NSN 5925-01-495-0602
NSN 2925-01-079-6229
NSN 7035-01-024-9511
NSN 5905-00-071-9280