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Buna-N O-Rings

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Buna-N Nitrile bufadiene (NBR), is a copolymer of acrylonitrile and butadiene, and is available in various ratios of these monomers. High-acrylonitrile versions (over 50%) have the best oil and fuel resistance, while the high butadiene versions (over 78%) offer the ultimate in low temperature performance.

Better known as nitriles, reinforced NBR rubbers have good oil and gasoline resistance, tensile strength, elongation properties, heat resistance and low compression set. Special compounding is required for good weatherability.

Typical applications for these medium priced rubbers are seals, O-rings, gaskets, diaphragms, pipe gaskets, tank linings, boots and bellows.

A carboxylated version of high-acrylonitrile butadiene copolymer (XNBR) is also available with a saturated polymer chain approaching 100%. This saturation and the reduction of weak carbon to carbon doublebonds achieved through hydrogenation improves the resulting polymers resistance to heat, chemicals, weathering an ozone. Also known as highly saturated nitrile (HSN) this elastomer possesses excellent physical properties and resistance to crude oil, oxidized fuel and refrigerants. Formulations are available with a service temperature range of -40 to + 300 degrees. F

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Aavolyn #

Cylinder/ Rod Diameter


RR1962 N/A Buna-N
RR1342 N/A Buna-N
OR10-012-3 N/A Buna-N
OR10-022-3 N/A Buna-N
OR10-025-3 N/A Buna-N
OR10-050-3 N/A Buna-N
OR10-112-3 N/A Buna-N
OR10-113-3 N/A Buna-N
OR10-114-3 N/A Buna-N
OR10-116-3 N/A Buna-N
OR10-142-3 N/A Buna-N
OR10-154-3 N/A Buna-N
OR10-141-3 N/A Buna-N
OR10-208-3 N/A Buna-N
OR10-017-3 N/A Buna-N
OR10-210-3 N/A Buna-N
OR10-212-3 N/A Buna-N
OR10-214-3 N/A Buna-N
OR10-216-3 N/A Buna-N
OR10-218-3 N/A Buna-N
OR10-220-3 N/A Buna-N
OR10-222-3 N/A Buna-N
OR10-224-3 N/A Buna-N
OR10-230-3 N/A Buna-N
OR10-232-3 N/A Buna-N
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