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 5835-00-752-6065
NSN 5996-01-032-4815
NSN 5920-00-172-9232
NSN 5945-01-193-7252
NSN 6110-00-122-2417
NSN 5999-01-569-6513
NSN 4140-00-632-6169
NSN 5990-01-181-4143
NSN 5990-01-340-3575
NSN 6685-01-229-4292
NSN 6130-01-504-7357
NSN 6620-00-086-5223