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 6320-00-925-0558
NSN 6135-01-413-4747
NSN 5915-01-166-7999
NSN 6220-00-904-2429
NSN 6130-00-356-1787
NSN 6610-01-421-4396
NSN 5965-01-327-9234
NSN 6240-01-092-3509
NSN 5915-00-683-8248
NSN 6620-01-369-3589
NSN 5999-00-764-7320
NSN 5985-00-811-9381