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 5835-01-368-4015
NSN 6145-00-188-3657
NSN 5998-01-398-1684
NSN 5996-01-012-0972
NSN 4140-00-610-7789
NSN 6320-01-397-9995
NSN 6620-01-138-0089
NSN 6610-00-647-3830
NSN 5835-01-378-6804
NSN 6240-01-371-6251
NSN 5930-01-095-6478
NSN 6135-00-334-4500