This PTFE O-Ring has a diameter of  mm and is White in color. The hardness of this Back-up Ring 7.66x10.56x1.5 - AS568-011 - PTFE - Closed - Internally - 51 Shore D - White - ORS276391 is 51 Shore D. Alternative names for the compound are , and it is commonly produced by . The O-Ring is typically used in and has an operating temperature range from -200 to 260. O-Rings 6534669 are referred to as 276391 and have a DIN 3771 size of . This item is equivalent to and has an approval. The chemical name of this O-Ring is Polytetrafluoronthylene.