As the contact force puts pressure on the plunger or nose of the spring plunger, it depresses in to the body forcing the internal spring to compress allowing the contact force to position the nose into the desired notched out area. This type of use for a spring plunger is to lock something into position.

What is spring loaded plunger?

A spring plunger, also known as a spring-loaded device (SLD), is a small and narrow device that's used for indexing and positioning of various components. Once installed, it applies adequate pressure so the ball or nose remains positioned.

How does an indexing plunger work?

A typical indexing plunger features a knob or ring attached to a spring loaded pin. When the knob is pulled, the pin is retracted, allowing for free movement. Upon release, the spring causes the pin to return to its extended position, locking the mechanism in place.