| CASEHARDENING INDICATOR | NOT CASEHARDENED |
| CROSS-SECTIONAL SHAPE STYLE | DOUBLE OVAL |
| INSIDE DIAMETER | 6.877 INCHES NOMINAL |
| MAJOR THICKNESS | 0.088 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD NO. 66 AISI C1070 THRU C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL HARDNESS RATING | 73.0 ROCKWELL A MINIMUM AND 77.9 ROCKWELL A MAXIMUM |
| MATERIAL | STEEL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 1 CLASS AND 7.250 IN. SIZE |
| OUTSIDE DIAMETER | 7.501 INCHES NOMINAL |
| RING STYLE | SPECIAL FLAT |
| STRENGTH RATING | 211000.0 POUNDS PER SQUARE INCH MINIMUM TENSILE |
| SURFACE TREATMENT | CADMIUM AND CHROMATE |
| USAGE DESIGN | INTERNAL |