Pin lock McMaster Carr o ring parts

[orangemen5]

Does anyone know what o rings the posts and diptubes are. Some ppl have good luck with interchanging the ball and pin o ring post thinking they are the same size and others don't. Just looking for McMaster Carr part #'s to replace all o rings in my pin lock kegs. Thank you for your help. (I know about the McMaster Carr thread. It mostly pertains to ball lock.). Thanks.