| Abbreviation | NR |
| Common Name | Natural Rubber |
| ASTM D-2000 classification | AA |
| Military(Mil-Std417) | RN |
| Chemical Definition | Polyisoprene |
| General Characteristics | |
| Durometer-Range (Shore A) | 30-90 |
| Tensile Range (P.S.I) | 500-3500 |
| Elongation (Max.%) | 700 |
| Compression Set | Excellent |
| Resilience-Rebound | Excellent |
| Abrasion Resistance | Excellent |
| Tear Resistance | Excellent |
| Solvent Resistance | Poor |
| Oil Resistance | Poor |
| Low Temperature Usage (°F) | -20° to -60° |
| High Temperature Usage (°F) | to 175° |
| Aging Weather-Sunlight | Poor |
| Adhesion To Metals | Excellent |