MS - Military Standards. The overriding characteristics of MS fasteners compared to commercial products is the extensive inspection and lot tractability for MS, guaranteeing the chemical, physical and dimensional qualities.
Product Specification:NAS Flat WasherInside Diameter: 1/4", Max 0.312 - Min 0.302Outside Diameter: Max 0.750 - Min 0.730Thickness: Max 0.080 - Min 0.051MS - Military StandardsIFI Tolerances Apply
military standards,ms,1/4 flat washers,stainless steel flat washer,nuts,bolts,fasteners,18-8 stainless steel
1/4"-811 MS Flat Washers, ID .312, OD .750, TK .080, 18-8 Stainless Steel - Qty-250