NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	703 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	771 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	714 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	803 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	835 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	853 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	289 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	329 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	579 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	623 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	658 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	215 mm x 3.1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	70 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	278 mm x 12 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	304 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	574 mm x 6.35 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	739 mm x 6.35 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	761 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	793 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	830 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	851 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	869 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	890 mm x 12.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	906 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	15.8 mm x 7.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	47.79 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	7.87 mm x 3.63 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	125.3 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	8.64 mm x 2.03 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	272.12 mm x 1.78 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	18.7 mm x 2.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	541 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	19.46 mm x 2.03 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	6.72 mm x 1.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	19.1 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	21.6 mm x 1.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	365 mm x 2.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	8.5 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	10 mm x 2.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	24.6 mm x 2 mm	NBR-Buna	90 Shore A	Nee

24561 - 24600 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.