| MRC | 
                        Requirement Statement | 
                        Characteristics | 
                    
                    
                   
                         
                      
                        | ABNL | 
                        CIRCLE DIAMETER | 
                        0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | 
                      
          
                      
                        | CQFM | 
                        HARDNESS RATING | 
                        46.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL | 
                      
          
                      
                        | MDCL | 
                        MATERIAL DOCUMENT AND CLASSIFICATION | 
                        MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | 
                      
          
                      
                        | MATT | 
                        MATERIAL | 
                        STEEL COMP 8630 OVERALL | 
                      
          
                      
                        | CSXB | 
                        KEY CHAMFER ANGLE | 
                        45.0 DEGREES NOMINAL | 
                      
          
                      
                        | ACJF | 
                        KEY CHAMFER LENGTH | 
                        0.030 INCHES MINIMUM AND 0.040 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 0.1260 INCHES MAXIMUM |