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 6620-00-355-1734
NSN 5965-01-399-8454
NSN 6610-01-452-9486
NSN 5930-01-159-9238
NSN 5996-00-451-5058
NSN 6685-01-284-4540
NSN 6145-00-269-4271
NSN 6150-01-442-7622
NSN 5920-01-251-5587
NSN 7035-01-352-6235
NSN 6240-01-080-3567
NSN 6610-00-319-4022