.070'' (1/16" Nominal) Viton (FKM) O-Ring Cord Stock, 75A Durometer, 10' Piece, Black O-Ring Cord made of Viton (fluorocarbon elastomer) for use with a variety of chemicals and fuels Durometer (hardness) of 75A For use across a wide temperature range from -15 degrees F (-26 degrees C) to 450 degrees F (232 degrees C) Made in the U.S.A. Available in various cross sections and lengths