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 5999-01-205-0001
NSN 5999-01-079-3130
NSN 5945-00-401-8649
NSN 6650-01-399-8552
NSN 5895-01-406-4601
NSN 6130-00-682-3350
NSN 5975-00-869-6480
NSN 6685-01-504-5235
NSN 5998-01-439-2490
NSN 5945-00-293-8333
NSN 5895-01-440-6954
NSN 5935-01-461-9614