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 5920-01-592-9983
NSN 6645-01-054-3969
NSN 6685-01-285-3159
NSN 5925-00-259-6742
NSN 5920-01-633-2771
NSN 5920-01-082-7497
NSN 6685-00-097-9391
NSN 5915-00-163-1031
NSN 5920-00-581-9471
NSN 5996-00-900-5251
NSN 2925-01-146-0278
NSN 6685-01-462-3590