Global O-Ring K-Boss Seal O-Ring Kit - Nitrile (Buna-N) 70 Durometer - 250 Pieces (11 Sizes) Relays Ace Roto-Mold Low Profile Pick

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Global O-Ring K-Boss Seal O-Ring Kit - Nitrile (Buna-N) 70 Durometer - 250 Pieces (11 Sizes) Relays Ace Roto-Mold Low Profile PickK Boss Seal O Ring Kit Nitrile (Buna N) 70 Durometer 250 Pieces (11 Sizes) This Kit contains 250 pieces and 11 of the most popular 900 series O Rings. These O Rings are used in sealing straight thread tube fittings (Boss Type) in the design and service of hydraulic equipment. 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