| ENVIRONMENTAL PROTECTION | LOW TEMPERATURE AND |
| HEAT, DRY |
| NONMETALLIC HARDNESS RATING | 45.0 MINIMUM SHORE DUROMETER A AND |
| 55.0 MAXIMUM SHORE DUROMETER A |
| MINIMUM TENSILE STRENGTH | 1500 POUNDS PER SQUARE INCH |
| FABRICATION METHOD | SOLID |
| SURFACE CONDITION | SMOOTH BOTH SIDES |
| COLOR | BLACK BOTH SIDES |
| CROSS-SECTIONAL SHAPE STYLE | CIRCULAR |
| CROSS SECTION OUTSIDE DIAMETER | 0.064 INCHES NOMINAL |
| LENGTH | 2.937 INCHES NOMINAL |
| MATERIAL | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OR |
| RUBBER BUTADIENE-STYRENE CLASS SBR |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-STD-417, TYPE R, CLASS RS, GRADE RS515ABF1 MIL SPEC SINGLE MATERIAL RESPONSE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-R-3065 |