| APERTURE DIAMETER | 100.0 MILLIMETERS NOMINAL |
| BOLT HOLE DIAMETER | 3.15 MILLIMETERS NOMINAL |
| BOLT HOLE QUANTITY | 4 |
| CROSS-SECTIONAL SHAPE STYLE | SOLID SINGLE OR COMPOSITION |
| CROSS-SECTIONAL THICKNESS | 0.188 INCHES NOMINAL |
| FABRICATION METHOD | SOLID |
| HARDNESS RATING | 60.0 SHORE DUROMETER A-2 MINIMUM AND 70.0 SHORE DUROMETER A-2 MAXIMUM OVERALL |
| OUTSIDE DIAMETER | 142.0 MILLIMETERS NOMINAL |
| MATERIAL | RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAL,OPS BLOWER |
| STYLE DESIGNATOR | CIRCULAR |