| CENTER HOLE DIAMETER | 17.690 INCHES MINIMUM AND 17.810 INCHES MAXIMUM |
| CROSS-SECTIONAL HEIGHT | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM |
| HARDNESS RATING | 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-6855,CL I,TY B,GR 50 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| TEMP RATING | -65.0 FAHRENHEIT AND 212.0 FAHRENHEIT |