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 5950-01-634-0677
NSN 5996-01-311-4424
NSN 5999-01-441-2433
NSN 7035-01-467-9030
NSN 6220-01-571-9995
NSN 5985-01-553-0264
NSN 6610-01-146-0331
NSN 6645-01-574-1969
NSN 6135-00-276-7625
NSN 6620-01-464-3087
NSN 6610-00-786-0696
NSN 5835-01-247-2634