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 5975-00-937-0415
NSN 5999-01-360-0921
NSN 5998-01-090-0433
NSN 5990-00-479-9157
NSN 5910-01-232-0497
NSN 5835-01-359-2575
NSN 5835-00-451-2982
NSN 7035-00-104-7613
NSN 5996-01-317-3676
NSN 5920-01-472-3583
NSN 5920-01-394-5003
NSN 5999-01-161-8437