20pcs Black Nitrile Butadiene Rubber NBR O-Ring 40mm Inner Dia 1.2mm Width

About this item

• [Size] – 42.4mm Outside Diameter, 40mm Inner Diameter, 1.2mm Cross-Section Diameter
• [Hardness] – 70A Durometer (Shore Hardness) for resistance to penetration
• [Nitrile Rubber] – Standard Nitrile Butadiene Rubber with a wide temperature range from -4℉ (-20°C) to 212℉ (100°C)
• [Application] – Widely used for pressure washer, filter, pump, water hose, plumbing pipe, garage maintenance and much more
• [NOTE] – Please confirm the required size and material before purchase, and put it in the right place

Features:
1. They are round in cross-section. For use across a wide temperature range from -4 (-20°C) to 212 (100°C).
2. Nitrile has good mechanical properties when compared with other elastomers and high wear resistance. Good resistance to many petroleum oils, greases, hydraulic fluids, mineral oil, and grease.
3. 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.
4. 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.