| APERTURE DIAMETER | 7.688 INCHES NOMINAL7.688 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER |
| CROSS-SECTIONAL THICKNESS | 0.125 INCHES NOMINAL0.125 INCHES NOMINAL |
| OUTSIDE DIAMETER | 8.312 INCHES NOMINAL8.312 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | R3,FSCM 3683 MFR REF ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | ASBESTOS OR STEEL CORROSION RESISTING OVERALL |
| STYLE DESIGNATOR | CIRCULAR |