- Dimensions are in inches.
 - Formerly designated Medium Helical Spring Lock Washers.
 
- Carbon Steel
 - Stainless Steel
 - Phosphorus Bronze
 
                    Unit of Measure
                    
               
        
            Specifications
                                                                                Product | 
                                                                        N/A Washers | 
                                                                                Unit of Measure | 
                                                                        N/A English | 
                                                                                Nominal Washer Size | 
                                                                        N/A 2-3/4 in | 
                                                                                Nominal Washer Size (Decimal) | 
                                                                        N/A 2.7500 in | 
                                                                                Max. Inside Diameter (A) | 
                                                                        N/A 2.793 in | 
                                                                                Min. Inside Diameter (A) | 
                                                                        N/A 2.762 in | 
                                                                                Max. Outside Diameter (B) | 
                                                                        N/A 3.824 in | 
                                                                                Min. Mean Section Thickness (ti + to)/2 | 
                                                                        N/A 0.458 in | 
                                                                                Min. Section Width (W) | 
                                                                        N/A 0.491 in | 
                                                                                Min. Bearing Width (BW) | 
                                                                        N/A 0.344 in | 
                                                                                Material | 
                                                                        N/A Carbon Steel Phosphorus Bronze Stainless Steel | 
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