I have an feedthrough that is circular with and lip for holding an o-ring and I need to design the same part but it needs to lay against a 8 in diameter cylinder. I have already done a arc cut but I need to design this part like it would naturally bend around a cylinder. I do not know how to approach this part. The circular part needs to have an arc like bend on both top and bottom planes. Attached is a drawing of the ring that needs to be bent.