| CASEHARDENING INDICATOR | NOT CASEHARDENED |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| END PLAY TAKEUP | 0.015 INCHES NOMINAL |
| INSIDE DIAMETER | 0.221 INCHES MINIMUM AND 0.227 INCHES MAXIMUM |
| MAJOR THICKNESS | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66,FS1066 THRU FS1090 FED STD SINGLE MATERIAL RESPONSE |
| MATERIAL HARDNESS RATING | 69.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM |
| MATERIAL | STEEL |
| NONDEFINITIVE SPEC/STD DATA | MS16628-1025 REFERENCE NUMBER |
| RING STYLE | EXTERNAL BOWED |
| SURFACE TREATMENT | CADMIUM AND CHROMATE |
| USAGE DESIGN | EXTERNAL |