| MRC | 
                        Requirement Statement | 
                        Characteristics | 
                    
                    
                   
                         
                      
                        | ABNL | 
                        CIRCLE DIAMETER | 
                        1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM | 
                      
          
                      
                        | CQFM | 
                        HARDNESS RATING | 
                        40.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL | 
                      
          
                      
                        | MDCL | 
                        MATERIAL DOCUMENT AND CLASSIFICATION | 
                        QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL OR 66 FED STD ALL MATERIAL RESPONSES OVERALL | 
                      
          
                      
                        | MATT | 
                        MATERIAL | 
                        STEEL COMP 4130 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 2330 OVERALL | 
                      
          
                      
                        | AXFE | 
                        KEY HEIGHT | 
                        0.542 INCHES MINIMUM AND 0.547 INCHES MAXIMUM | 
                      
          
                      
                        | ACJJ | 
                        KEY SIZE DESIGNATION | 
                        WOODRUFF 20 | 
                      
          
                      
                        | ACJH | 
                        STARTING EDGE RADIUS | 
                        0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM | 
                      
          
                      
                        | CSPJ | 
                        STARTING EDGE SHAPE | 
                        ROUND | 
                      
          
                      
                        | STYL | 
                        STYLE DESIGNATOR | 
                        ROUND BOTTOM | 
                      
          
                      
                        | ABNM | 
                        THICKNESS | 
                        0.2188 INCHES MINIMUM AND 0.2198 INCHES MAXIMUM |