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 5915-01-168-3887
NSN 6220-00-299-7749
NSN 6645-00-269-8440
NSN 6610-01-519-3080
NSN 5950-00-039-7698
NSN 5998-01-242-1616
NSN 4140-01-081-7473
NSN 5835-01-095-4400
NSN 5835-01-617-5121
NSN 6685-01-583-6055
NSN 6685-01-168-8194
NSN 5920-00-824-0234