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 5905-00-936-3742
NSN 5990-01-544-4360
NSN 5999-00-628-5933
NSN 5930-01-552-4107
NSN 6240-01-523-9983
NSN 6105-01-626-9193
NSN 6320-01-280-3218
NSN 6135-01-618-8314
NSN 5985-01-049-1016
NSN 5985-01-111-4354
NSN 6130-01-278-9831
NSN 6150-01-006-5730