EXTSW 1/2” ID x 1.950” OD x 1/4” thick Beveled stainless washers
Actual size .507" ID x 1.950” OD x .250" Thick Beveled
(+/- .003" on all dimensions) 
.030 inch Radius OD / slightly countersunk ID (no sharp edges)
 Made in USA. 304 Stainless has very GOOD corrosion resistance.