Yes, I've done just that in some automotive applications. McMaster Carr has a decent selection: http://www.mcmaster.com/#retaining-rings/=oy1z6d

This site (https://www.rotorclip.com/) has every possible permutation imaginable, including the heavy duty metric versions that are impossible to find elsewhere. If you ask nicely they might even sample you a handful for free like they've done for me in the past, though I've also been a real customer through my day job which helps.