Yes, but I doubt you'll ever find one. Gen inserts are absolutely out of sight and all you can hope to do is find a decent rep insert and maybe do a little aging to make it less noticeable.
Phong's two vintage inserts are ok and there is the 6538 inserts down the page which can also be used on a 5510.
There's a book "Vintage Rolex Sports Models" by Skeet and Urul which shows various 5510s- starting with a 6538 type insert shown on Phong's site and finally ending with the vintage type insert that Phong has which was used in the middle 60s.
The thing about inserts is that they are a wear item and get replaced. And I promise you Rolex could care less about replacing the insert- they'll do it in a heart beat if it's worn out.