D - Cup Outer Diameter | 
                                                                        N/A 7-1/4 in184.150 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 7.5585 in191.986 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 1.875 in47.625 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.3125 in7.938 mm |