D - Cup Outer Diameter | 
                                                                        N/A 16.0000 in406.400 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 16.5000 in419.100 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 1.875 in47.625 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.3750 in9.525 mm |