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 5935-01-102-6548
NSN 5965-00-482-7945
NSN 5905-01-506-2407
NSN 5999-01-067-7958
NSN 4140-01-512-8528
NSN 6645-01-414-4133
NSN 5895-01-383-6999
NSN 6130-00-159-1104
NSN 5996-01-048-4096
NSN 6150-01-318-1505
NSN 5895-01-471-4458
NSN 5950-01-514-7766