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 5905-00-205-2595
NSN 5999-00-237-2845
NSN 2925-00-623-0262
NSN 6220-01-607-0130
NSN 5920-00-676-9113
NSN 5925-00-124-5015
NSN 6650-00-816-6525
NSN 5996-01-607-6915
NSN 6145-01-323-3971
NSN 5960-01-174-6975
NSN 5910-01-444-5105
NSN 6650-01-422-3395