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 5950-01-029-4112
NSN 6110-01-138-1205
NSN 5996-01-089-5339
NSN 6240-01-435-1387
NSN 7035-00-150-2379
NSN 6150-01-082-0098
NSN 6240-01-468-6392
NSN 5945-00-639-9848
NSN 6110-00-172-0200
NSN 5835-01-488-6678
NSN 5996-00-606-0011
NSN 6220-00-171-8638