If anyone has part numbers for the rebuild items for the various regulators that are in circulation in the hobby, please let me know. I'd like to at minimum catalog and share these PN's so people can rebuild their own regulators. And at maximum, curate and put on the SJS website little $5 rebuild kits tailored to specific regulators. The Teflon balls, o-rings, shims, etc. Any of that information is valuable to helping others keep their equipment running.
Here is the shim set I use for adjusting pressure on BC and similar regulators: https://www.mcmaster.com/catalog/129/3657/98126A033
So far I have PN's for the PTFE balls and for shims of varying size. If anyone knows o-ring PN's for any of the various regulators in common usage, please let me know. I will be ripping a few regs apart tomorrow to try and find out for myself.