<p>Internal Retaining Ring, Carbon Steel, Black Phosphate, For Bore Dia 18mm, Free OD 19.50mm, Thickness 1.00mm, Thickness Tolerance -0.060mm, Fits Groove Dia 19.00mm, Groove Dia Tolerance +0.13mm, Fits Groove Width 1.10mm, Fits Groove Depth 0.50mm, Hole Dia 2.00mm, Meets DIN472, Rockwell Hardness RC47-54, Tensile Strength 150,000 PSI, Package 50</p> <p><br /><b>Features</b></p> <ul> <li>Finish: Black Phosphate</li> <li>Item: Standard Retaining Ring</li> <li>Material: carbon steel</li> <li>Tensile Strength (PSI): 150,000</li> <li>Type: Internal</li> <li>Thickness: 1mm</li> <li>Meets/Exceeds: DIN472</li> <li>Rockwell Hardness: RC47-54</li> <li>Thickness Tolerance: -0.060mm</li> <li>Fits Groove Dia.: 19.00mm</li> <li>Fits Groove Width: 1.10mm</li> <li>For Bore Dia.: 18mm</li> <li>Hole Dia.: 2mm</li> <li>Free O.D.: 19.50mm</li> <li>Groove Dia. Tolerance: +0.13mm</li> <li>Fits Groove Depth: 0.50mm</li> </ul> <p></p>