TX-50SS-A Locking Retaining Ring,0.015 In. Thk,PK5, System of Measurement Inch, Location Style External, Thickness 0.015 in, Fits Shaft Diameter 1/2 in, For Bore Diameter Not Applicable, Fits Groove Width -, Fits Groove Depth -, Free Inside Diameter 0.498 in, Free Outside Diameter 0.828 in, Material Stainless Steel, Finish Plain, Material Grade/Class 18-8, Ring Type Self-Locking Retaining Ring, Manufacturer Location Made in USA*, Thickness Tolerance +/-0.002 in, Standards REACH Compliant, RoHS Compliant