Specification Brand : uxcell BulletPoint1 : [Size] - 49mm Outside Diameter, 42mm Inner Diameter, 3.5mm Cross-Section Diameter BulletPoint2 : [Hardness] - 70A Durometer (Shore Hardness) for resistance to penetration BulletPoint3 : [Nitrile Rubber] - Standard Nitrile Butadiene Rubber with a wide temperature range from -4℉ (-20°C) to 212℉ (100°C) BulletPoint4 : [Application] - Widely used for pressure washer, filter, pump, water hose, plumbing pipe, maintenance and much more BulletPoint5 : [NOTE] - Please confirm the required size and material before purchase, and put it in the right place Color : White ExternallyAssignedProductIdentifier1 : 743785494281 ExternallyAssignedProductIdentifier2 : 0743785494281 ItemName : uxcell Nitrile Rubber O-Rings 49mm OD 42mm ID 3.5mm Width, Metric Nitrile Rubber Sealing Gasket, Pack of 10 ItemPackageDimensions_Height : 14.6 centimeters ItemPackageDimensions_Length : 1.5 centimeters ItemPackageDimensions_Width : 9.8 centimeters ItemPackageQuantity : 50 ItemShape : Round ItemTypeKeyword : o-ring-seals Manufacturer : uxcell Material : Nitrile Butadiene Rubber ModelNumber : a18080300ux0594 NumberOfItems : 50 NumberOfPieces : 10 PartNumber : a18080300ux0594 ProductDescription : 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.