Buna 70 Duro Nitrile O-Rings Are An Used Seal For Mating Metal Surfaces.
O-rings help block the passage of gasses and liquids. O-rings are made with Nitrile, the most widely used O-ring elastomer. Nitrile provides excellent resistance to compression, tears and abrasion. Used for use with petroleum products. Operates in temperatures ranging from -40°F to 250°F. Available in a variety of sizes.