Specification Brand : Mr O-Ring BulletPoint1 : Made of silicone for use with a variety of chemicals and fluids BulletPoint2 : Durometer (hardness) of 70A BulletPoint3 : Round cross-section provides a seal between cylindrical overlapping surfaces BulletPoint4 : For use across a wide temperature range from -76 degrees F (-60 degrees C) to 437 degrees F (225 degrees C) BulletPoint5 : Meets standards defined by Aerospace Standard AS568A Color : Red ExternallyAssignedProductIdentifier1 : 700724818058 ExternallyAssignedProductIdentifier2 : 0700724818058 ExternallyAssignedProductIdentifier3 : 00700724818058 ItemName : 010 O-Ring, Silicone, 70A Durometer, 1/4" ID, 3/8" OD, 1/16" Width, Red (Pack of 1000) ItemPackageDimensions_Height : 16.6 centimeters ItemPackageDimensions_Length : 1.5 centimeters ItemPackageDimensions_Width : 15.3 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : o-ring-seals Manufacturer : Small Parts Material : Silicone ModelNumber : AZ-S70010/1000 NumberOfItems : 1000 NumberOfPieces : 325 PartNumber : S70010 ProductDescription : Nitrile is the one of the most widely used rubber materials, due to its combination of low cost, resistance to many chemicals, and good physical properties. The acrylonitrile content of this highly polar elastomer provides excellent oil and gas permeation resistance, which increases as the level of ACN increases. However, an increase in the acrylonitrile content compromises low temperature flexibility, and increases compound hardness. Typical ACN content ranges from 18% to 50%. Nitrile should not be exposed to direct sunlight or moderate to high levels of atmospheric ozone, as rapid deterioration will result. However, NBR will accept many anti-degradants, most notably PVC, which offer some degree of improvement of these deficiencies. Nitriles are usually sulfur cured, but peroxide curing is also possible, resulting in improved compression set. Buna-nitrile can have high tensile strength, and abrasion, tear, and compression set resistance. It can be used in temperatures between -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C), and is compatible for use with petroleum, HFA, HFB and HFC fluids, vegetable oil, alcohol, acids and aliphatic hydrocarbons. These Buna O-rings have a shore durometer (Hardness of a material, and its resistance to permanent indentation) listed in the title above. A higher durometer value indicates greater resistance to indentation. O-rings commonly provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in engines, faucets, flanges, valves, and various cylinders. They are circular in shape, with a round cross section, and a hole in the center, similar to a doughnut. O-rings are available in various sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter. **Note: The picture shows an example of the o-rings, you will receive an item of similar design in the amount and specifications stated in the title. ProductSiteLaunchDate : 2019-03-18T09:30:35.664Z Size : 010 SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TemperatureRange : 5E+2 degrees_fahrenheit UnitCount : 1000 UnspscCode : 31401503