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 6650-00-427-7858
NSN 6610-01-476-7412
NSN 5920-01-382-4861
NSN 5999-01-447-4892
NSN 5935-01-495-3605
NSN 6150-01-234-1047
NSN 2925-01-034-3774
NSN 5930-00-755-4925
NSN 5975-00-512-1099
NSN 5990-00-489-7834
NSN 5960-00-999-4422
NSN 7035-00-171-0804