| FIRST COUNTERBORE DEPTH | 0.190 INCHES MINIMUM AND 0.216 INCHES MAXIMUM |
| FIRST COUNTERBORE DIAMETER | 0.367 INCHES MINIMUM AND 0.383 INCHES MAXIMUM |
| HOLE DIAMETER | 0.180 INCHES MINIMUM AND 0.196 INCHES MAXIMUM |
| MATERIAL HARDNESS RATING | 65.0 DUROMETER MINIMUM AND 75.0 DUROMETER MAXIMUM |
| MATERIAL | RUBBER CHLOROPRENE CLASS CR |
| OUTSIDE/TOP FLANGE DIAMETER | 0.956 INCHES MINIMUM AND 0.982 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.378 INCHES MINIMUM AND 0.404 INCHES MAXIMUM |
| STYLE DESIGNATOR | DONUT TOP COUNTERBORED |