D - Cup Outer Diameter | 
                                                                        N/A 10.5 in266.7 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 10.7772 in273.741 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 1.5 in38.1 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.2813 in7.145 mm |