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 5990-01-458-9576
NSN 6650-00-851-4772
NSN 6610-01-076-4800
NSN 6130-00-023-8701
NSN 6685-01-415-5551
NSN 5975-01-023-8773
NSN 6150-00-295-5714
NSN 5905-00-405-3022
NSN 5930-01-090-4797
NSN 5996-01-168-7148
NSN 6685-00-063-9722
NSN 5910-01-023-0078