A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.
NSN 5999-00-175-8159
NSN 4140-01-193-4841
NSN 6610-00-111-3648
NSN 5950-01-406-6648
NSN 6110-00-337-0858
NSN 6105-00-165-1619
NSN 5965-01-633-8849
NSN 5905-01-236-9576
NSN 5950-01-388-3753
NSN 5999-01-312-1777
NSN 5925-01-063-7107
NSN 6320-00-456-2092