Retaining Ring,Internal,0.078 In. Thk,PK10, System of Measurement Inch, Location Style Internal, Thickness 0.078 in, Fits Shaft Diameter Not Applicable, For Bore Diameter 2 1/2 in, Fits Groove Diameter 2.648 in, Fits Groove Width 0.086 in, Fits Groove Depth 0.074 in, Free Outside Diameter 2.775 in, Material Steel, Finish Zinc Plated, Material Grade/Class Ungraded, Tensile Strength 150,000 psi, Ring Type Housing Ring, Clearance Diameter Type Expanded, Material Quality Standards ASME