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 6135-01-432-6201
NSN 5935-01-163-3225
NSN 5910-00-679-9556
NSN 5999-00-932-2509
NSN 6135-01-195-5343
NSN 5975-01-616-1667
NSN 6685-01-295-9415
NSN 6320-00-908-6841
NSN 5965-01-601-3968
NSN 5990-01-244-9998
NSN 6610-01-120-7670
NSN 7035-01-380-6538