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 6645-01-028-2186
NSN 4140-01-400-3610
NSN 5925-00-112-3460
NSN 2925-01-088-9016
NSN 6135-01-558-7257
NSN 6620-01-334-8938
NSN 6685-01-344-4452
NSN 6110-00-401-3646
NSN 5950-00-042-5564
NSN 5998-01-460-4993
NSN 5935-00-704-6711
NSN 5895-00-450-9889