| CASEHARDENING INDICATOR | NOT CASEHARDENED |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| MAJOR THICKNESS | 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS 1449 PART 1,CS80 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL HARDNESS RATING | 480.0 VICKERS MINIMUM |
| MATERIAL | STEEL |
| RING STYLE | E |
| SPECIAL FEATURES | 0.146 IN. MIN,0.149 IN. MAX GROOVE DIA;0.024 IN. MIN,0.0265 IN. MAX WD OF GROOVE;0.180 IN. MIN AND 0.270 IN. MAX SHAFT DIA |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DEF STAN 03-11 DEF STAN/SPEC SINGLE TREATMENT RESPONSE OR BS 3189 CLASS A1 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | PHOSPHATE |
| USAGE DESIGN | EXTERNAL |