| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR BOTTOM RING |
| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR TOP RING |
| HEIGHT | 0.251 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
| INSIDE DIAMETER | 0.318 INCHES NOMINAL |
| OUTSIDE DIAMETER | 0.459 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE AND ASBESTOS BOTTOM RING |
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE AND ASBESTOS SEPARATOR |
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE AND ASBESTOS TOP RING |