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 5985-01-166-5892
NSN 5915-00-244-1702
NSN 5905-01-500-5719
NSN 6240-00-144-4693
NSN 5915-00-553-8755
NSN 7035-00-104-7613
NSN 5910-01-108-4443
NSN 6645-01-323-9413
NSN 6240-01-348-8975
NSN 6685-00-548-5460
NSN 5998-00-757-4822
NSN 5965-01-421-1244