Global O-Ring Nitrile (Buna-N) O-Ring Kit - 70 Duro Black - 382 Pcs (30 Sizes) Liquid Phase Carbon BMI 1-1/4 Inch Carbon Steel

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Global O-Ring Nitrile (Buna-N) O-Ring Kit - 70 Duro Black - 382 Pcs (30 Sizes) Liquid Phase Carbon BMI 1-1/4 Inch Carbon SteelNitrile (Buna N) O Ring Kit 70 Duro Black 382 Pcs (30 Sizes) This kit contains 382 O Rings in the 30 most popular sizes, providing an extremely low cost per size value. O Rings conform dimensionally to AS568 universal series. Nitrile (also known as Buna, Buna N, or NBR) is one of the most common sealing elastomers due to its resistance to petroleum based fuels and lubricants and its relatively low price. Nitrile elastomers are copolymers of