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 5998-01-161-8568
NSN 6240-01-216-4060
NSN 5999-00-143-1818
NSN 5975-01-443-4306
NSN 5855-00-323-0967
NSN 6240-00-079-7852
NSN 5945-01-620-1288
NSN 5920-00-905-4769
NSN 6135-01-478-9316
NSN 5915-01-648-2126
NSN 5965-01-535-9090
NSN 5905-01-559-5365