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: 5/8", Max 0.687 - Min 0.677Outside Diameter: Max 1.750 - Min 1.650Thickness: Max 0.160 - Min 0.108MS - Military StandardsIFI Tolerances Apply
military standards,ms,5/8 SAE flat washers,stainless steel flat washer,nuts,bolts,fasteners,18-8 stainless steel
5/8"-821 MS Flat Washers, ID .687, OD 1.750, TK .160, 18-8 Stainless Steel - Qty-250