Specification Brand : Mr O-Ring BulletPoint1 : Made of Buna-nitrile 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 : I'll give you the best price Color : Black ItemName : M3.5x68 Buna-N O-Ring, 70A Durometer, Round, Black, Buna-N, 68 mm ID, 75 mm OD, 3.5 mm Width (Pack of 5) ItemPackageDimensions_Height : 0.25 inches ItemPackageDimensions_Length : 4 inches ItemPackageDimensions_Width : 6 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : o-ring-seals LowerTemperatureRating : -196 degrees_celsius Manufacturer : Small Parts Material : Nitrile Rubber ModelNumber : AZ-N3.50X068/5 NumberOfItems : 5 PartNumber : N3.50X068/5 Pressure : 100 pounds_per_square_inch ProductDescription : Spiral Wound Gasket,1/2'' DN15-150lb pipe size, 304SS inner ring&Outer ring with a Flexible PTFE Filler, (5 each per pack).size:14.2*19.1*31.8*46.5mm Accept size customization Size : 68 mm ID, 75 mm OD, 3.5 mm Width SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 5 UnspscCode : 31401503 UpperTemperatureRating : 600 degrees_celsius