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 5998-00-602-5080
NSN 5855-01-195-2518
NSN 6135-01-435-8451
NSN 4140-01-012-2460
NSN 5835-00-642-8148
NSN 5905-01-372-1950
NSN 6130-00-890-8471
NSN 5960-01-433-7565
NSN 6645-01-030-5288
NSN 6105-01-587-5610
NSN 5985-01-617-6808
NSN 6130-01-408-8208