J. W. Winco, Inc. GN 617.1

Indexing plungers GN 617.1 with lcok-out position are used for such applications where the plunger has to stay in its retracted position. To achieve this, the knob is rotated by 90 degrees after being retracted. The head of the plunger body is provided with a suitable notch in opposite positions so as to prevent the plunger from accidentally slipping back into its forward position.