Found along old railway

[Gkbaker321]

Anyone know what this might be?

 

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[Tony in SC]

Not knowing the size it looks like a keeper/lock for a bolt?

 

[ticndig]

looks like shim stock

 

[1637]

looks like the keeper used on automobile brake line.
brad

 

[desertexplorer]

Upper control arm wheel alignment shim for trucks or cars. Here’s an assortment you can purchase from Autozone.
Your find is marked as 1/32” thick.

 

[CaptEsteban]

Upper control arm wheel alignment shim for trucks or cars. Here’s an assortment you can purchase from Autozone. View attachment 1849989
Your find is marked as 1/32” thick.

I agree.

 

[No gold in NY]

Looks like you nailed it desertexplorer. Nice solve.

 

[Gkbaker321]

Thank you for posting
Had no idea