| APERTURE DIAMETER | 439.00 MILLIMETERS MINIMUM AND 441.00 MILLIMETERS MAXIMUM |
| BOLT CIRCLE DIAMETER | 477.00 MILLIMETERS MINIMUM AND 479.00 MILLIMETERS MAXIMUM |
| BOLT HOLE QUANTITY | 10 |
| CROSS-SECTIONAL SHAPE STYLE | SOLID SINGLE OR COMPOSITION |
| CROSS-SECTIONAL THICKNESS | 2.00 MILLIMETERS NOMINAL |
| HOLE DIAMETER | 12.00 MILLIMETERS NOMINAL |
| MATERIAL | RUBBER NEOPRENE OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | FAN SEALING RING |
| OUTSIDE DIAMETER | 499.00 MILLIMETERS MINIMUM AND 501.00 MILLIMETERS MAXIMUM |
| STYLE DESIGNATOR | CIRCULAR |