This CR O-Ring has a diameter of  mm and is Black in color. The hardness of this O-ring 26.49x3.58 - CR - Neopreen - 70 Shore A - Black - ORS229819 is 70 Shore A. Alternative names for the compound are Neoprene, and it is commonly produced by Neoprene. The O-Ring is typically used in and has an operating temperature range from -40 ºC to 100 ºC. O-Rings 721803 are referred to as 229819 and have a DIN 3771 size of . This item is equivalent to and has an approval. The chemical name of this O-Ring is Chloroprene rubber / chlorobutadiene rubber.