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 4140-01-077-3981
NSN 5990-00-226-1152
NSN 6645-01-383-6514
NSN 5920-01-291-4056
NSN 4140-01-409-1764
NSN 5835-01-253-8092
NSN 5999-01-423-9396
NSN 5930-01-442-9924
NSN 5965-01-022-3298
NSN 5920-01-524-9626
NSN 6220-01-332-6167
NSN 5905-01-431-8321