uxcell Nitrile Rubber ORings 35mm OD 30mm ID 25mm Width Metric BunaN Sealing Gasket Pack of 25

Specifications: Inner Diameter: 30mm / 1.18-inch Outside Diameter: 35mm / 1.38-inch Cross-Section Diameter: 2.5mm / 0.1-inch Package Contents: 25pcs x O-Ring Descriptions: 1. 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). 2. 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. 3. This O-ring is made of black nitrile rubber, has a durometer of 70A, and is designed for use in a wide variety of sealing applications. 4. 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. 5. Buna-nitrile is vulnerable to acetone, ethers, esters, ozone, sunlight and weathering and should therefore not be used in ozone-generating electric motors, welding equipment, or in applications with exposure to UV light.