Pickled beans will last for 5 years and sometimes longer as long as the jar has remained sealed and not opened.
Also if the jar of pickled beans have been stored in a cool place then they will remain safe to eat for up to 5 years and sometimes longer.
As long as the pickled beans look good and smell good then they are safe to eat.
I've eaten pickled beans that have been in my Grandmas pantry for 10 years and they were okay to eat and I never got sick from them.
We were cleaning out her pantry after she died and going through the food that may or may not be good.
My grandma made great pickled beans and other canned foods and so I opened a jar of those pickled beans that had the date on them and she had them for 10 years.
The pickled beans were still good after all that time.
I usually eat foods including pickled beans well before 10 years and most other people do as well but they are safe to eat as long as they have remained sealed.
If you've broken the seal on the canning jar that the pickled beans are in then they will only last for about a month in the refrigerator.