| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.138 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD NO.66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL THICKNESS | 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| OUTSIDE DIAMETER | 0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM |
| STYLE DESIGNATOR | FLAT INTERNAL TEETH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |