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: 7/16", Max 0.468 - Min 0.448Outside Diameter: Max 0.921 - Min 0.901Thickness: Max 0.080 - Min 0.051MS - Military StandardsIFI Tolerances Apply
military standards,ms,7/16 flat washers,stainless steel flat washer,nuts,bolts,fasteners,18-8 stainless steel
7/16"-816 MS Flat Washers, ID .468, OD .921, TK .080, 18-8 Stainless Steel - Qty-250