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 : 369 Buna-N O-Ring, 70A Durometer, Black, 8" ID, 8-3/8" OD, 3/16" Width (Pack of 5) ItemPackageDimensions_Height : 2.54 centimeters ItemPackageDimensions_Length : 20.32 centimeters ItemPackageDimensions_Width : 20.32 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : o-ring-seals Manufacturer : Small Parts Material : Synthetic Rubber ModelNumber : 369 NumberOfItems : 5 PartNumber : ORB-369-05 Size : 369 UnitCount : 5 UnspscCode : 31401503