Once a part is discontinued, it's almost impossible to find it brand new. I would recommend going to a local store that sells used refrigerators. A lot of these stores rebuild and repair the fridges in the back and always have tons of used shelves, clips, etc. Tell them you need a retainer for a door shelf for an Amana refrigerator (this retainer was a pretty common one and covered a lot of Amana models), show them a
picture from our site.
Good luck.