NBR O-rings 90 Shore A

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 188x1.1 NBR - 90 Shore A - Black - ses-323509 O-ring Black188 mm  x 1.1 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 321x4 NBR - 90 Shore A - Black - ses-236923 O-ring Black322 mm  x 4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 442x8 NBR - 90 Shore A - Black - ses-257956 O-ring Black443 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 469.5x8.4 NBR - 90 Shore A - Black - ses-323831 O-ring Black469.6 mm  x 8.4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 497x5.34 NBR - 90 Shore A - Black - ses-238027 O-ring Black497 mm  x 5.34 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 590x15.88 NBR - 90 Shore A - Black - ses-238226 O-ring Black591 mm  x 15.88 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 568x9 NBR - 90 Shore A - Black - ses-258733 O-ring Black569 mm  x 9 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 656x3 NBR - 90 Shore A - Black - ses-259590 O-ring Black657 mm  x 3 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 674.3x5.7 NBR - 90 Shore A - Black - ses-485201 O-ring Black674.4 mm  x 5.7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 697x3 NBR - 90 Shore A - Black - ses-260019 O-ring Black698 mm  x 3 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 159x4 NBR - 90 Shore A - Black - ses-16393 O-ring Black159 mm  x 4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 235x8 NBR - 90 Shore A - Black - ses-41506 O-ring Black235 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 180x10 NBR - 90 Shore A - Black - ses-41237 O-ring Black181 mm  x 10 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 225x6 NBR - 90 Shore A - Black - ses-41467 O-ring Black225 mm  x 6 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 295x8 NBR - 90 Shore A - Black - ses-237653 O-ring Black296 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 408x7.5 NBR - 90 Shore A - Black - ses-99718 O-ring Black408 mm  x 7.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 529x8 NBR - 90 Shore A - Black - ses-258331 O-ring Black530 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 459.23x3.53 NBR - 90 Shore A - Black - ses-484968 O-ring Black459.24 mm  x 3.53 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 470x5.34 NBR - 90 Shore A - Black - ses-237975 O-ring Black471 mm  x 5.34 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 500x7.5 NBR - 90 Shore A - Black - ses-238033 O-ring Black501 mm  x 7.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 594x4 NBR - 90 Shore A - Black - ses-258994 O-ring Black595 mm  x 4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 571x6.35 NBR - 90 Shore A - Black - ses-238176 O-ring Black571 mm  x 6.35 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black658.82 mm  x 9.53 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 682x8.4 NBR - 90 Shore A - Black - ses-259866 O-ring Black683 mm  x 8.4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 756x7 NBR - 90 Shore A - Black - ses-238571 O-ring Black757 mm  x 7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 712x8 NBR - 90 Shore A - Black - ses-260174 O-ring Black713 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 813x8.4 NBR - 90 Shore A - Black - ses-261349 O-ring Black814 mm  x 8.4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 491x9 NBR - 90 Shore A - Black - ses-258020 O-ring Black492 mm  x 9 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 555x8 NBR - 90 Shore A - Black - ses-238137 O-ring Black556 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 647x10 NBR - 90 Shore A - Black - ses-259526 O-ring Black648 mm  x 10 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 581x6.5 NBR - 90 Shore A - Black - ses-156241 O-ring Black582 mm  x 6.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 683x5.33 NBR - 90 Shore A - Black - ses-259874 O-ring Black684 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 764x4 NBR - 90 Shore A - Black - ses-260742 O-ring Black765 mm  x 4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 823x5 NBR - 90 Shore A - Black - ses-261452 O-ring Black824 mm  x 5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 855x7 NBR - 90 Shore A - Black - ses-261812 O-ring Black856 mm  x 7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black624 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 695x5.33 NBR - 90 Shore A - Black - ses-485229 O-ring Black695 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 890x5.33 NBR - 90 Shore A - Black - ses-262175 O-ring Black891 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 789x10.82 NBR - 90 Shore A - Black - ses-100058 O-ring Black790 mm  x 10.82 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 840x8.4 NBR - 90 Shore A - Black - ses-261634 O-ring Black841 mm  x 8.4 mm NBR-Buna90 Shore A Neeicon-bekijk icon

The origin of NBR

Nitrile-butadiene rubber (NBR) was developed by the chemical company ‘I.G. Farbenindusty’ from Germany between WWI and WWII. At first the material was called Buna-N® and was later renamed to Perbunan®. The material first came to market in the 30s and is nowadays the most used elastomer for standard seals like O-rings and other seals.

What is NBR?

NBR is an elastomer, which is a synthetic polymer obtained by the copolymerization of acrylonitrile and 1,3-butadiene. The characteristics are partly determined by the amount of acrylonitrile in the material and this varies from 18 to 50 percent. As the acrylonitrile increases, resistance to petroleum base oils and hydrocarbon fuels increases, but low temperature flexibility decreases and the rubber can become brittle.

What is NBR used for?

  • Seals
  • O-rings
  • Gaskets
  • Pipe and Cable Covers

The advantages of NBR

  • Resistant against oils, fats, hydrocarbons, diluted acids
  • Has good mechanical qualities and is wear-resistant
  • Good resistance to heat
  • It is powerful and elastic
  • It has a working temperature range of -35°C tot + 120°C (-30 ° F tot + 250 ° F)

The downside of NBR

  • It has limited resistance to weather and ozone conditions
  • Not well resistant to aromatic compounds, halogenated hydrocarbons, ketone brake fluids and strong acids
  • Must be kept out of direct sunlight
  • The working temperature range is limited in comparison to other materials

On this page we offer our range of 90 Shore A O-Rings. Search for your specific O ring by using the filters on the left of the page or take your time and browse our wide range of our products. When you can not find the product you are looking for in our 90 Shore A made from NBR, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.