D - Cup Outer Diameter | 
                                                                        N/A 13-1/2 in342.900 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 13.8750 in352.425 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 1.75 in44.45 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.3750 in9.525 mm |