D - Cup Outer Diameter | 
                                                                        N/A 2.8750 in73.025 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 3.0000 in76.200 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 0.5938 in15.083 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.1250 in3.175 mm |