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 5965-01-519-1214
NSN 5920-00-908-1929
NSN 6320-00-456-2092
NSN 5910-00-832-6925
NSN 7035-01-026-1171
NSN 5905-01-050-8400
NSN 6645-00-789-5210
NSN 6240-00-573-7514
NSN 2925-00-717-2308
NSN 6685-01-332-7822
NSN 6650-00-187-5388
NSN 6135-01-503-1688