D - Cup Outer Diameter | 
                                                                        N/A 3 in76.2 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 3.1836 in80.863 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 0.9063 in23.020 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.1875 in4.763 mm |