NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	839 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	848 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	317 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	325.79 mm x 2.16 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	291 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	342 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	39.3 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	113 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	402.32 mm x 5.99 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	623 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	823 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	837 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	847 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	65.2 mm x 4.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	858 mm x 9.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	187.6 mm x 15 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	67.96 mm x 2.95 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	265 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	104.4 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	269 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	106 mm x 2.05 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	49 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	50.6 mm x 1.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	52.10 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	56 mm x 5.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	403 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	515 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	418.3 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	748 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	771 mm x 8.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	788 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	805 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	316 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	828 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	284 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	843 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	330 mm x 15 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	850.10 mm x 12.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	340 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	217 mm x 8 mm	NBR-Buna	90 Shore A	Nee

24041 - 24080 of 25941 products

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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.