D - Cup Outer Diameter | 
                                                                        N/A 2.1250 in53.975 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 2.2772 in57.841 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 0.625 in15.875 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.1562 in3.967 mm |