Buna-N Sheet, Sheet, Adhesive Type Plain Backing, Backing Type Non-Adhesive, Color Black, Durometer 50A, Grade Military, Material Buna-N, Standards MIL-G-1149 Type 1 Class 5 Grade 50, Maximum Temperature 250 Degrees F, Minimum Temperature -30 Degrees F, Overall Length 36 in, Thickness Tolerance +/-0.017 in, Overall Width 12 in, Tensile Strength 1,500 psi, Texture Smooth, Overall Thickness 0.125 in, Abrasion Resistance Good, Chemical Resistance Fair, Oil Resistance Excellent