| CASE STYLE | SQUARE |
| CENTER HOLE DIAMETER | 2.559 INCHES MINIMUM AND 2.565 INCHES MAXIMUM |
| CROSS-SECTIONAL SHAPE STYLE | U |
| CROSS-SECTIONAL HEIGHT | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAL,DBL,2.56X3.51X.375 NBR |
| PERIPHERAL DIAMETER | 3.503 INCHES MINIMUM AND 3.509 INCHES MAXIMUM |
| PROPRIETARY CHARACTERISTICS | PACS |