My Mini-14 Model 5832 has the 1/2" X 28 tpi (if that matters) and needs a replacement star washer. The flash hider was removed and the star washer was dropped and subsequently found after it had been thoroughly crushed by someone's big ole boot 
Does anyone know what size washer this is and if I need to order from Ruger or is it something a local hardware store may have. I can call Ruger tomorrow but thought it might be a cheap part that I can buy locally.
Here's a picture of the washer I'm referring to (taken from a post by edorfox, mine was all bent to heck):
Thanks
Does anyone know what size washer this is and if I need to order from Ruger or is it something a local hardware store may have. I can call Ruger tomorrow but thought it might be a cheap part that I can buy locally.
Here's a picture of the washer I'm referring to (taken from a post by edorfox, mine was all bent to heck):

Thanks