This restrictor plate is ONLY compatible with the older, Panasonic microswitch PCB assembly.
More recent models of LS-56 have a BLACK restrictor plate, and are NOT compatible with this product.
If you never swapped out the PCB assembly in your LS model, then the model with white square restrictor plate should have the Panasonic microswitch.
If you have swapped the PCB assembly recently, Omron switches require a different plate.
We are planning to stock the BLACK OMRON restrictor plate in the near future.
The Seimitsu LS-56 square restrictor plate is a drop-in replacement part for the compact LS series joysticks. It is compatible with the following Seimitsu joystick models: