This O-Ring has a diameter of 40 mm mm and is SS-304 in color. The hardness of this Domsel Oil Seal A-SF - 30 x 40 x 3 - NBR - Nitrile - SS-304 - Black - OSS40371 is 30 mm. 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 to . O-Rings 6569385 are referred to as 40371 and have a DIN 3771 size of 40 mm. This item is equivalent to 30 x 40 x 7 and has an approval. The chemical name of this O-Ring is .