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 4140-00-279-3148
NSN 6130-00-540-5305
NSN 5985-01-401-5387
NSN 5998-01-230-1314
NSN 6145-01-330-6794
NSN 5920-01-011-9378
NSN 5920-01-652-1179
NSN 5920-01-139-5137
NSN 5905-00-187-0428
NSN 5990-00-140-1159
NSN 5920-01-551-0841
NSN 5985-01-481-5785