[Size] - 47mm Outside Diameter, 40mm Inner Diameter, 3.5mm 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, maintenance and much more [NOTE] - Please confirm the required size and material before purchase, and put it in the right place Description:
1.They are circular in shape, round in cross-section. For use across a wide temperature range from -4℉ (-20°C) to 212℉ (100°C).
2.Nitrile Rubber or 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.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 , , flanges, valves, and various cylinders.
5.Nitrile Rubber 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.

Specifications:
Outside Diameter: 47mm / 1.85-inch
Inner Diameter: 40mm / 1.57-inch
Cross-Section Diameter: 3.5mm / 0.14-inch
Package Content: 10pcs x O-Ring