| CASEHARDENING INDICATOR | NOT CASE-HARDENED |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| INSIDE DIAMETER | 0.683 INCHES MINIMUM AND 0.688 INCHES MAXIMUM |
| MAJOR THICKNESS | 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A576 FS1060 TO FS1074 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| MATERIAL | STEEL |
| RING STYLE | EXTERNAL INVERTED LUGS |
| USAGE DESIGN | EXTERNAL |
| SURFACE TREATMENT | CADMIUM OR ZINC OR DICHROMATE |