This NBR - Nitrile O-Ring is mm and in the color Black. The Hardness of this O-Ring Cord - 23mm - NBR - Nitrile - 70 Shore A - Black (per Meter) is 70 Shore A.The alternative names of the compound are and they are mostly produced by . The O-ring is commonly used in and has an operating temperature range from to . O-rings 100277 are indicated as 195781 and have a DIN 3771 Size of . This item is equal to and has an FDA Approval. The chemical name of this Oring is .