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 5960-01-138-5897
NSN 5905-01-529-9383
NSN 6685-01-027-9098
NSN 5975-01-283-3303
NSN 5950-01-365-5965
NSN 6645-01-046-2804
NSN 6645-01-023-8020
NSN 5895-01-360-4868
NSN 5905-00-915-3696
NSN 5920-01-359-3982
NSN 6110-01-434-4547
NSN 5950-01-217-6349