D - Cup Outer Diameter | 
                                                                        N/A 7-1/4 in184.150 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 7.4375 in188.913 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 0.7188 in18.258 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.1875 in4.763 mm |