D - Cup Outer Diameter | 
                                                                        N/A 9 3/4 in247.650 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 10.0272 in254.691 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 1.5 in38.1 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.2813 in7.145 mm |