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 5920-00-059-4659
NSN 7035-01-276-0355
NSN 6130-01-239-4913
NSN 5975-00-153-0050
NSN 5835-01-621-2525
NSN 6645-01-147-5579
NSN 5915-00-538-5251
NSN 6320-01-631-7828
NSN 5905-00-419-2822
NSN 6320-01-425-1417
NSN 5999-00-257-6452
NSN 5950-01-582-8295