| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND |
| 50.0 ROCKWELL C MAXIMUM |
| STYLE DESIGNATOR | FLAT INTERNAL TEETH |
| HOLE DIAMETER | 0.383 INCHES MINIMUM AND |
| 0.398 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.692 INCHES NOMINAL |
| MATERIAL THICKNESS | 0.036 INCHES NOMINAL |
| DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY THE SURF TREATMENT |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY THE SURF TREATMENT |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 88044 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN936A616 |