| STYLE DESIGNATOR | MUSHROOM |
| OUTSIDE DIAMETER | 7.500 INCHES NOMINAL |
| OVERALL HEIGHT | 11.000 INCHES NOMINAL |
| MOUNTING HOLE DIAMETER | 0.562 INCHES NOMINAL |
| MOUNTING BOLT CIRCLE DIAMETER | 3.000 INCHES NOMINAL |
| BASE DIAMETER | 0.4565 INCHES NOMINAL |
| TOP DIAMETER | 4.250 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN DOME HOLES | 4.250 INCHES NOMINAL |
| MATERIAL AND LOCATION | CERAMIC OVERALL |
| SURFACE TREATMENT AND LOCATION | COMPOUND GLAZE OVERALL |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 UNTHREADED HOLE |
| SCREW THREAD DIAMETER AND LOCATION | 0.500 ELECTRICAL TERMINATION INCHES NOMINAL |
| SCREW THREAD QUANTITY PER INCH AND LOCATION | 13 ELECTRICAL TERMINATION |
| THREAD CLASS AND LOCATION | 2A ELECTRICAL TERMINATION |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 79911 |
| DESIGN CONTROL REFERENCE | 27317 |