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 5935-01-190-2825
NSN 6110-00-224-6128
NSN 5950-00-197-0903
NSN 5905-00-300-5112
NSN 5930-01-050-3934
NSN 6220-01-104-6604
NSN 6130-01-585-8624
NSN 5925-00-599-6339
NSN 5935-01-121-9780
NSN 4140-01-072-8326
NSN 5996-01-414-1685
NSN 5910-01-160-7584