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 6620-01-335-2443
NSN 5895-01-502-3047
NSN 5985-01-437-6150
NSN 6220-01-200-6461
NSN 5835-00-419-0575
NSN 5990-01-382-3244
NSN 5975-01-258-7224
NSN 5945-01-516-6958
NSN 6610-00-023-0076
NSN 5965-01-005-0341
NSN 5930-01-562-3554
NSN 5998-01-173-8442