D - Cup Outer Diameter | 
                                                                        N/A 2.6875 in68.263 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 2.9901 in75.949 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 0.6875 in17.463 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.1562 in3.967 mm |