| CROSS SECTION INSIDE DIAMETER | 0.313 INCHES NOMINAL |
| CROSS SECTION OUTSIDE DIAMETER | 0.437 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | CIRCULAR W/ CENTER APERTURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-6855, CLASS 2, TYPE A, GRADE 40, FORM SHEET MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| MATERIAL | RUBBER CHLOROPRENE CLASS CR LOCATION NOT OTHERWISE SPECIFIED |
| MINIMUM TENSILE STRENGTH | 1100 POUNDS PER SQUARE INCH |
| NONDEFINITIVE SPEC/STD DATA | 2 CLASS AND A TYPE AND 40 GRADE |
| NONMETALLIC HARDNESS RATING | 35.0 MINIMUM SHORE DUROMETER A AND 45.0 MAXIMUM SHORE DUROMETER A |
| SURFACE CONDITION | SMOOTH BOTH SIDES |