A490-367461-05 is a spring kit designed for use with Guardian Electric Model 11 DC frame solenoids. The kit contains three to five springs in each package, enabling users to select the appropriate spring for their specific application requirements. Included with the kit are protective plungers designed to safeguard the springs during installation and operation. Selection charts printed on the kit packaging provide guidance for matching the correct spring to the solenoid model and duty cycle. This spring kit is commonly used to restore or upgrade DC frame solenoids with return spring functionality, allowing the plunger to retract automatically after de-energization. The kit is available in bulk quantities with tiered pricing for orders of 1–24, 25–49, 50–99, and 100–249 units.