Specification Brand : Mr O-Ring BulletPoint1 : Made of Buna-nitrile (also called Buna-N) for use with a variety of fluids and hydrocarbons 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 -40 degrees F (-40 degrees C) to 212 degrees F (100 degrees C) BulletPoint5 : Meets standards defined by Aerospace Standard AS568A Color : Black ExternallyAssignedProductIdentifier : 7426824150449 ItemName : 420 O-Ring, Buna-N, 70A Durometer, 3-7/8" ID, 4-3/8" OD, 1/4" Width, Black (Pack of 25) ItemPackageDimensions_Height : 4.826 centimeters ItemPackageDimensions_Length : 15.24 centimeters ItemPackageDimensions_Width : 21.082 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : o-ring-seals Manufacturer : Small Parts Material : Nitrile Rubber ModelNumber : AZ-N70420/25 NumberOfItems : 25 PartNumber : N70420 ProductDescription : Used in common sealing applications, these nitrile/Buna N O-rings offer excellent resistance to tearing. They handle common motor and hydraulic oils with ease. 70A durometer. -40-225 degrees F. Meet SAE AS568, ASTM D1418, ASTM D2000, SAE J200. Performs well in: -Petroleum oils and fuels -Silicone oils and greases -Ethylene glycol -Dilute acids -Water Size : 420 SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 25 UnspscCode : 31401503