D - Cup Outer Diameter | 
                                                                        N/A 27.0000 in685.800 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 27.2772 in692.841 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 1.25 in31.75 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.2812 in7.142 mm |