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 5999-01-027-0773
NSN 5999-01-085-0690
NSN 6105-01-410-8223
NSN 5998-01-148-1666
NSN 2925-01-058-1718
NSN 5990-01-281-0018
NSN 6150-01-271-2220
NSN 6645-01-525-7493
NSN 5910-01-141-5553
NSN 6150-00-220-5154
NSN 5905-00-500-9916
NSN 5985-01-423-0581