Item Specifications UPC 842176142814 Package Quantity 5 Inch / Metric Inch Thread Size 1-3/4" Inside Dia. 1.812" Outside Dia. 3.500" Thickness Min. 0.133" Thickness Max. 0.147" Material Stainless Steel 18-8 Finish Plain Item Type Washers Washer Type Flat Washer Product Code 5150-6755 SKU 3SWFS928