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 5998-00-891-9674
NSN 5895-01-287-1224
NSN 5835-01-576-9013
NSN 5835-00-552-0734
NSN 4140-01-505-3914
NSN 6685-01-147-5617
NSN 6150-01-089-1452
NSN 5920-00-526-9238
NSN 6645-01-423-4617
NSN 5935-01-115-0942
NSN 6110-01-369-0122
NSN 5835-01-555-8963