| DIAMETER | 0.189 INCHES MINIMUM AND 0.194 INCHES MAXIMUM |
| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER ANGLE | 14.0 DEGREES NOMINAL AND 16.0 DEGREES NOMINAL |
| FIRST END TAPER LENGTH | 0.120 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
| HEAD STYLE | FLAT |
| HEIGHT | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| PIN HEAD DIAMETER | 0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM |
| SPECIAL FEATURES | ULTIMATE TENSILE STRENGTH TO BE 65000 PSI MAX |
| STYLE DESIGNATOR | GROOVE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-N-290 CL 1 GR C FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL OVERALL |
| UNDERCUT DIAMETER | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| UNDER HEAD LENGTH | 2.500 INCHES NOMINAL |