NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	782 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	205.68 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	794 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	181 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	807 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1.1 mm x 1.78 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1.93 mm x 1.07 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	266.4 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	276 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	322.6 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	2.8 mm x 1.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	704 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	874.4 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	759 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	890 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	774.2 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	902 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	788 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	268 mm x 12.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	46 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	594 mm x 8.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	46.100 mm x 5.97 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	721 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	38.9 mm x 4.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	736 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	614.4 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	367 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	698 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	369 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	752 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	373 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	768 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	531 mm x 9.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	2.9 mm x 0.81 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	3.63 mm x 0.69 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	4.44 mm x 0.75 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	244.6 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	713 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	210 mm x 3.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	749.4 mm x 12.7 mm	NBR-Buna	90 Shore A	Nee

23681 - 23720 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.