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 5920-01-025-6989
NSN 2925-01-014-0118
NSN 6685-00-538-8656
NSN 6110-01-190-3838
NSN 6610-01-475-7915
NSN 6650-01-658-7194
NSN 6150-01-659-1555
NSN 5996-01-599-9867
NSN 5965-01-323-7225
NSN 6130-01-044-5436
NSN 5935-01-322-4930
NSN 5835-00-949-3018