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 6650-00-050-0476
NSN 5915-01-188-1569
NSN 5996-00-459-9059
NSN 6135-01-215-1245
NSN 6620-01-315-1857
NSN 5999-00-952-5000
NSN 2925-01-248-6028
NSN 6240-00-095-3915
NSN 5920-01-504-9111
NSN 5999-01-067-0107
NSN 5855-01-519-7929
NSN 5990-01-187-8594