| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR BOTTOM RING |
| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR TOP RING |
| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR INTERMEDIATE RING |
| HEIGHT | 0.625 INCHES NOMINAL |
| INSIDE DIAMETER | 2.874 INCHES MINIMUM AND 2.875 INCHES MAXIMUM |
| INTERMEDIATE RING QUANTITY | 3 |
| OUTSIDE DIAMETER | 4.247 INCHES MINIMUM AND 4.248 INCHES MAXIMUM |
| MATERIAL | STEEL OR ZINC INTERMEDIATE RING |
| MATERIAL | STEEL BOTTOM RING |
| MATERIAL | STEEL TOP RING |