| MRC | 
                        Requirement Statement | 
                        Characteristics | 
                    
                    
                   
                         
                      
                        | ABNL | 
                        CIRCLE DIAMETER | 
                        0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | 
                      
          
                      
                        | MATT | 
                        MATERIAL | 
                        STEEL COMP 1018 OVERALL OR STEEL COMP 1020 OVERALL OR STEEL COMP 1025 OVERALL | 
                      
          
                      
                        | CSXB | 
                        KEY CHAMFER ANGLE | 
                        40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM | 
                      
          
                      
                        | ACJF | 
                        KEY CHAMFER LENGTH | 
                        0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM | 
                      
          
                      
                        | AXFE | 
                        KEY HEIGHT | 
                        0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM | 
                      
          
                      
                        | ACJJ | 
                        KEY SIZE DESIGNATION | 
                        WOODRUFF 3 | 
                      
          
                      
                        | CSPJ | 
                        STARTING EDGE SHAPE | 
                        CHAMFERED | 
                      
          
                      
                        | STYL | 
                        STYLE DESIGNATOR | 
                        ROUND BOTTOM | 
                      
          
                      
                        | ABNM | 
                        THICKNESS | 
                        0.1250 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM |