Description:They are circular in shape,round in cross-section.For use across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C).Buna N or Nitrile has good mechanical properties when compared with other elastomers and high wear resistance. Good resistance to many petroleum oils, greases, hydraulic fluids, alcohol, mineral oil and grease.This O-ring is made of black nitrile rubber, has a durometer of 50A, and is designed for use in a wide variety of sealing applications.O-rings commonly provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in engines, , flanges, valves, and various cylinders.
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