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 5996-01-073-2332
NSN 5945-01-224-7610
NSN 6145-01-310-8597
NSN 6130-01-305-8173
NSN 6620-01-484-1303
NSN 6150-01-425-1204
NSN 5996-00-725-8307
NSN 6645-01-383-8139
NSN 2925-00-853-5039
NSN 6645-01-334-7326
NSN 6610-01-605-1509
NSN 5996-00-420-9027