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 5905-01-392-3615
NSN 5960-01-027-1835
NSN 2925-01-411-4666
NSN 6110-00-811-0364
NSN 5985-01-531-2123
NSN 5855-00-482-9876
NSN 5910-01-394-4663
NSN 5895-01-329-4670
NSN 6145-01-464-9305
NSN 5996-01-607-7035
NSN 6145-01-528-4181
NSN 5999-00-028-3487