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 5999-01-546-9114
NSN 6135-00-793-1809
NSN 5835-00-172-8292
NSN 6220-01-355-1251
NSN 7035-01-457-5645
NSN 7035-01-336-0464
NSN 5835-01-089-7615
NSN 5915-01-097-8451
NSN 7035-01-201-9850
NSN 5920-00-387-5312
NSN 5905-01-006-1761
NSN 4140-00-493-4759