Specification Brand : Mr O-Ring BulletPoint1 : Made of ethylene propylene diene monomer (EPDM) rubber for use with a variety of chemicals and environments BulletPoint2 : Can be used in a wide temperature range from -70 degrees F (-57 degrees C) to 300 degrees F (149 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 ExteriorFinish : Brass ExternallyAssignedProductIdentifier1 : 089109875849 ExternallyAssignedProductIdentifier2 : 0089109875849 ItemDisplayWeight : 4.84 pounds ItemName : 109 EPDM O-Ring, 70A Durometer, Black, 5/16" ID, 1/2" OD, 3/32" Width (Pack of 100) ItemPackageDimensions_Height : 9 centimeters ItemPackageDimensions_Length : 0.9 centimeters ItemPackageDimensions_Width : 8.7 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : o-ring-seals Manufacturer : Small Parts Material : EPDM ModelNumber : 109 NumberOfItems : 100 PartNumber : ORP-109-C ProductSiteLaunchDate : 2012-02-21T00:00:01-08:00 Size : 109 Style : Threaded UnitCount : 100 UnspscCode : 31410000