NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	977 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	103 mm x 5.43 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1011 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	138.6 mm x 6.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1161 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	164.4 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	27.59 mm x 1.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	10.46 mm x 4.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	32.8 mm x 0.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	16.2 mm x 2.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	89 mm x 7.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	26.6 mm x 3.25 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	39.7 mm x 3.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	29 mm x 1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	54 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	37 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	66.64 mm x 3.25 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	46 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	72 mm x 12 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	30.8 mm x 4.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	105 mm x 2.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	840 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	848 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	858 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	2.9 mm x 1.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	3.66 mm x 1.9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	4.47 mm x 1.42 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	5.4 mm x 1.52 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	508 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	972 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	556 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	998 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	561 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1131 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	645 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	209.24 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	185 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	219 mm x 16 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	225 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	50 mm x 1.5 mm	NBR-Buna	90 Shore A	Nee

23961 - 24000 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.