| CENTER HOLE DIAMETER | 4.209 INCHES MINIMUM AND 4.269 INCHES MAXIMUM |
| CROSS-SECTIONAL HEIGHT | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM |
| HARDNESS RATING | 80.0 SHORE DUROMETER A NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R025988/4, CL-1, GR80 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | RUBBER FLUOROSILICONE CLASS FQ |