Thank you Greg. I haven't seen any with the nylon insert. I've only seen them like this with retaining spring ring:
Metalfixer, thanks for the link! It's funny in the image they show the retaining ring but the 3D files don't have it.
I appreciate the help!
I need to create a 10mm metal ball joint like the one pictured and I'm wondering if anyone has any 3D files of something similar I could look at? Thank you!