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 5945-00-653-3776
NSN 6220-01-051-6993
NSN 5910-00-230-1778
NSN 5855-01-103-1474
NSN 6110-01-450-1679
NSN 5985-00-236-7984
NSN 5905-01-256-6172
NSN 5920-00-607-3385
NSN 6620-01-305-0412
NSN 2925-00-110-6180
NSN 6135-01-389-7518
NSN 6620-01-534-2370