Frankenngine-what the h... is this

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I don't believe this is out of a Lycoming but I found it on the table where the engine parts were. Not that I haven't used it for other things.
It's just a worry because I can't remember where it came from. I think maybe a socket wrench I took apart and then threw away?

Annyway, PLEASE tell me this clip is NOT out of a Lycoming O290/320 engine. Thanks(I hope)

Jack

 

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