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 5960-01-291-5025
NSN 6220-00-460-4770
NSN 5835-00-729-9305
NSN 6645-01-487-6282
NSN 6150-01-502-5808
NSN 6110-01-142-0109
NSN 5945-01-571-8594
NSN 6145-01-429-6070
NSN 5975-00-718-6039
NSN 2925-00-794-1363
NSN 7035-01-332-9582
NSN 6130-00-020-9289