D - Cup Outer Diameter | 
                                                                        N/A 2.8125 in71.438 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 2.9225 in74.232 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 0.3750 in9.525 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.1100 in2.794 mm |