| HARDNESS RATING | 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A684/A684M ASSN STD ALL MATERIAL RESPONSES |
| MATERIAL | STEEL COMP 1065 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090 OR STEEL COMP 1095 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SPRING LEAF, TORSION |
| OVERALL LENGTH | 21.017 INCHES MINIMUM AND 21.077 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM |
| OVERALL WIDTH | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM |
| SPECIAL FEATURES | FINAL PROTECTIVE FINISH IS OIL PER MIL-PRF-3150. |
| STYLE DESIGNATOR | RECTANGULAR |