NBR O-rings 90 Shore A

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 21.92x2.62 NBR - 90 Shore A - Black - ses-155431 O-ring Black21.93 mm  x 2.62 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 104x1.78 NBR - 90 Shore A - Black - ses-40572 O-ring Black104 mm  x 1.78 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 8.7x3.36 NBR - 90 Shore A - Black - ses-321396 O-ring Black8.7 mm  x 3.36 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 88.5x5 NBR - 90 Shore A - Black - ses-413646 O-ring Black88.6 mm  x 5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 18.5x0.6 NBR - 90 Shore A - Black - ses-324069 O-ring Black18.5 mm  x 0.6 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 122.74x3.23 NBR - 90 Shore A - Black - ses-323252 O-ring Black122.75 mm  x 3.23 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 24.2x2.5 NBR - 90 Shore A - Black - ses-235666 O-ring Black24.3 mm  x 2.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 92x2.49 NBR - 90 Shore A - Black - ses-484235 O-ring Black92 mm  x 2.49 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 11.13x7.14 NBR - 90 Shore A - Black - ses-324001 O-ring Black11.13 mm  x 7.14 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 218x5.33 NBR - 90 Shore A - Black - ses-237568 O-ring Black218 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 265x8.5 NBR - 90 Shore A - Black - ses-155923 O-ring Black266 mm  x 8.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 319.5x8.4 NBR - 90 Shore A - Black - ses-235198 O-ring Black319.6 mm  x 8.4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 290x9.6 NBR - 90 Shore A - Black - ses-237639 O-ring Black291 mm  x 9.6 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 50x2.65 NBR - 90 Shore A - Black - ses-235945 O-ring Black50 mm  x 2.65 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 51.94x3.53 NBR - 90 Shore A - Black - ses-39833 O-ring Black51.95 mm  x 3.53 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 65.5x2.5 NBR - 90 Shore A - Black - ses-322803 O-ring Black65.6 mm  x 2.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 57.15x2.03 NBR - 90 Shore A - Black - ses-39924 O-ring Black57.16 mm  x 2.03 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 31x15 NBR - 90 Shore A - Black - ses-237458 O-ring Black31 mm  x 15 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 87.5x5 NBR - 90 Shore A - Black - ses-40376 O-ring Black87.6 mm  x 5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 94.5x2 NBR - 90 Shore A - Black - ses-323071 O-ring Black94.6 mm  x 2 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 105.99x1.78 NBR - 90 Shore A - Black - ses-484272 O-ring Black105.100 mm  x 1.78 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 57.17x5.33 NBR - 90 Shore A - Black - ses-288406 O-ring Black57.18 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 6.65x0.55 NBR - 90 Shore A - Black - ses-321291 O-ring Black6.65 mm  x 0.55 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 9.4x1.8 NBR - 90 Shore A - Black - ses-321444 O-ring Black9.4 mm  x 1.8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 16x8 NBR - 90 Shore A - Black - ses-38927 O-ring Black16 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black28.16 mm  x 3.2 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 181x8 NBR - 90 Shore A - Black - ses-484433 O-ring Black181 mm  x 8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 256x10 NBR - 90 Shore A - Black - ses-99542 O-ring Black256 mm  x 10 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black227 mm  x 3.53 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 277x6.5 NBR - 90 Shore A - Black - ses-41660 O-ring Black278 mm  x 6.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 880x5.33 NBR - 90 Shore A - Black - ses-485518 O-ring Black881 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 289x3 NBR - 90 Shore A - Black - ses-257734 O-ring Black289 mm  x 3 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 64.6x5.7 NBR - 90 Shore A - Black - ses-234954 O-ring Black64.7 mm  x 5.7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 896x3 NBR - 90 Shore A - Black - ses-262236 O-ring Black897 mm  x 3 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 68x1 NBR - 90 Shore A - Black - ses-312130 O-ring Black68 mm  x 1 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black908 mm  x 3 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 105x4.5 NBR - 90 Shore A - Black - ses-28322 O-ring Black105 mm  x 4.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black927 mm  x 4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black89.6 mm  x 3.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 897x5.7 NBR - 90 Shore A - Black - ses-485549 O-ring Black898 mm  x 5.7 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.