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 5996-01-391-9585
NSN 6150-00-128-0238
NSN 4140-01-163-3724
NSN 6685-01-420-4575
NSN 5990-01-437-4876
NSN 5975-00-736-3420
NSN 5950-00-811-0993
NSN 6135-01-341-8003
NSN 6105-00-099-8818
NSN 6685-01-247-0470
NSN 5999-01-028-2761
NSN 5975-00-548-7818