This part will not sit flat on PCB. Based on mechanical drawing is shows a cutout required for the round section of jack. There are 2 other possible solutions. Find a different part or remove the alignment pin holes so the jack will sit on those pins. This will allow clearance for the jack housing. I just filed a flat spot on the bottom plastic. The round metal edge doesn't require filing, just the plastic area just behind it.
This part will not sit flat on PCB. Based on mechanical drawing is shows a cutout required for the round section of jack. There are 2 other possible solutions. Find a different part or remove the alignment pin holes so the jack will sit on those pins. This will allow clearance for the jack housing. I just filed a flat spot on the bottom plastic. The round metal edge doesn't require filing, just the plastic area just behind it.![cn4 jack](https://user-images.githubusercontent.com/8203042/35113796-bcd06996-fc50-11e7-815a-7e727d000216.jpg)