The Sargent XC series cylinder offers a way to achieve higher key control in an existing key system, the company says. XC is backward compatible with existing Sargent keyways, making it an upgrade option.
The XC series incorporates a factory-loaded locking side pin mechanism in the barrel that engages a locking slot machined into the XC body, preventing the plug from rotating even when a properly cut standard key is inserted. The XC key has a factory-milled slot in the key blade that allows the locking side pin mechanism to retract, creating a second “shear line” and allowing the plug to rotate.