Spiral Retaining Ring,0.025 In. Thk,PK25, System of Measurement Inch, Location Style External, Thickness 0.025 in, Fits Shaft Diameter 3/8 in, For Bore Diameter Not Applicable, Fits Groove Diameter 0.352 in, Fits Groove Width 0.029 in, Fits Groove Depth 0.012 in, Free Inside Diameter 0.349 in, Material Steel, Finish Plain, Material Grade/Class Ungraded, Tensile Strength 221,000 psi, Ring Type Spiral Retaining Ring, Material Quality Standards ANSI, Manufacturer Location Made in USA*