Small iron bar

[ripvanb]

Iron bar with hole in middle. Doesn’t look hand forged to me. It’s 4 1/2 inches long. Is it farm related? Thanks for looking.

 

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[creskol]

I am pretty sure it is a wrench, but I can't remember what it went to.. maybe a valve of some sort or a clamp .. I will continue to wrack my feeble brain,

 

[Joe-Dirt]

I know what that is, I just can’t think of it

 

[Tony in SC]

Some of the old tractors and engines that had a cannister type air filter had a retainer somewhat that?