Unit of Measure
                    
               
        
            
                                                                                C/S Metric (mm) | 
                                                                        N/A 1.80 | 
                                                                                ID Metric (mm) | 
                                                                        N/A 3.75 | 
                                                                                OD Metric (mm) | 
                                                                        N/A 7.35 | 
                                                                                Std Shrink | 
                                                                        N/A Yes | 
                                                                                Reference Size | 
                                                                        N/A A0038, JIS B2401 - 3.75 x 1.8 |