Specification Brand : Mr O-Ring BulletPoint1 : Made of Buna-nitrile (also called Buna-N) for use with a variety of fluids and hydrocarbons BulletPoint2 : Can be used across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C) BulletPoint3 : Round in cross-section to provide a seal between cylindrical overlapping surfaces BulletPoint4 : Durometer (hardness) of 70A for resistance to penetration BulletPoint5 : Meets standards defined by Aerospace Standard AS568A Color : Black ItemName : 318 Buna O-Ring, 70A Durometer, Black, 1" ID, 1-3/8" OD, 3/16" Width (Pack of 25) ItemPackageDimensions_Height : 0.762 centimeters ItemPackageDimensions_Length : 15.24 centimeters ItemPackageDimensions_Width : 12.192 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : o-ring-seals Manufacturer : Small Parts Material : Nitrile Rubber ModelNumber : 318 NumberOfItems : 25 PartNumber : ORB-318-25 Size : 318 SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 25 UnspscCode : 31410000