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 5998-00-283-5309
NSN 6620-01-032-3937
NSN 6135-00-276-7625
NSN 5895-01-535-0309
NSN 5920-00-012-2000
NSN 6240-01-190-8369
NSN 5910-00-577-4366
NSN 5985-01-437-1566
NSN 6685-01-381-0759
NSN 6620-00-111-7089
NSN 6145-01-158-6794
NSN 6110-01-441-9562