| APERTURE DIAMETER | 3.188 INCHES NOMINAL |
| CROSS SECTION OUTSIDE DIAMETER | 3.688 INCHES MINIMUM AND 3.750 INCHES MAXIMUM |
| CROSS SECTION INSIDE DIAMETER | 3.126 INCHES MINIMUM AND 3.250 INCHES MAXIMUM |
| CROSS-SECTIONAL SHAPE STYLE | CIRCULAR WITH CENTER APERTURE |
| OUTSIDE DIAMETER | 3.688 INCHES MINIMUM AND 3.750 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | C-F-206 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | WOOL COMP 12R1 OVERALL |
| STYLE DESIGNATOR | CIRCULAR |