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 6220-00-852-8317
NSN 5855-01-432-4401
NSN 5998-01-066-2996
NSN 6135-00-299-6918
NSN 5920-01-022-5083
NSN 5990-01-054-4255
NSN 5985-01-525-7714
NSN 6610-00-584-5055
NSN 6620-01-234-1799
NSN 5965-01-580-0938
NSN 6110-00-987-6971
NSN 5945-00-959-1194