K4800 Buna-N Square Cord Cross Section Actual 0.5 in Overall Diameter 1/2 in Color Black Material Buna-N Durometer 70A Standard Maximum Temperature 210 Degrees F Minimum Temperature 0 Degrees F Overall Length 25 ft Tensile Strength 725 psi Square Abrasion Resistance Good Chemical Resistance Fair Oil Resistance Excellent Water Resistance Good Weather Resistance Fair Cross Section Fractional 1/2 in