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 5950-00-157-1621
NSN 6650-01-235-0981
NSN 6320-00-646-3311
NSN 5960-01-438-9836
NSN 6320-01-317-0926
NSN 5835-01-378-6804
NSN 6135-00-891-4944
NSN 5945-00-133-3007
NSN 6135-01-121-3225
NSN 5910-01-023-9542
NSN 6130-01-639-8149
NSN 5895-00-682-9339