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 5965-00-993-5439
NSN 5996-00-971-6838
NSN 5895-01-379-4523
NSN 5996-00-057-2849
NSN 6135-01-027-7543
NSN 5835-01-382-4592
NSN 5905-01-555-8077
NSN 7035-00-079-7189
NSN 5835-00-828-9335
NSN 5996-00-598-4839
NSN 5960-00-709-5068
NSN 6685-01-298-2118