Need Help!

[notaclue]

I'm going to apologize right off because I'm trying to get information and I know nothing about autos. I recently found some pistons in my shed that belonged to my partner who just passed. I've tried googling the number on the box (980-P .060) and the closest I can come is that they go to a 292? but the tops are different then any of the pics I see online. I would be grateful if anyone could tell me what these go to or what they're "officially" called. Thanks in advance for any help.