New!! Qty (95) External Retaining Rings for 7/16" Shaft Diameter. These are made of C1060 -C1090 Steel with a zinc and yellow chromate primer finish. Fits .412 groove diameter, .029 groove width, .025 thick, and clearance diameter of .630". McMaster-Carr Part Number 98410A119. Listing is for 95 pieces, new from opened factory package shown.