D - Cup Outer Diameter | 
                                                                        N/A 7-1/8 in180.975 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 7.4330 in188.798 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 1.5 in38.1 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.3125 in7.938 mm |