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 6240-00-169-1478
NSN 5945-01-268-4492
NSN 5935-01-023-2526
NSN 5910-00-333-4817
NSN 6685-01-418-0925
NSN 5975-01-553-6972
NSN 5910-01-474-5479
NSN 5985-01-578-8474
NSN 5998-01-096-0919
NSN 6150-01-427-3764
NSN 5905-00-007-5519
NSN 6130-00-420-1248