'External Retaining Ring, Heavy Duty, Carbon Steel, Black Phosphate, For Shaft Dia 1 3/4 In, Free ID 1.608 In, Thickness 0.109 In, Thickness Tolerance +/-0.003 In, Fits Groove Dia 1.650 In, Groove Dia Tolerance +0.003/-0.004 In, Fits Groove Width 0.120 In, Groove Width Tolerance +0.005 In, Fits Groove Depth 0.050 In, Clearance Dia Expanded 2.340 In, Clearance Dia Released 2.250 In, Hole Dia 0.109 In, Meets ASME, Rockwell Hardness RC47-52, Tensile Strength 150, 000 PSI, Package 5'