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 6620-00-643-1402
NSN 5920-00-291-1379
NSN 6610-01-429-7267
NSN 5855-00-610-4052
NSN 6130-00-938-3495
NSN 7035-01-487-6481
NSN 5945-01-149-4291
NSN 5975-01-246-0272
NSN 6145-00-537-7059
NSN 5996-01-204-5640
NSN 6105-01-548-1656
NSN 5999-00-821-0141