NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	762 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	2.51 mm x 0.35 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	71.6 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	3.05 mm x 0.46 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	3.7 mm x 1.92 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	259 mm x 6.99 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	275 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	294 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	675.17 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1401 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	683 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	7 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	694 mm x 7.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	9.25 mm x 1.83 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	695 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	2.35 mm x 1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	705 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	3 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	758 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	3.7 mm x 1.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	579 mm x 6.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	4.19 mm x 1.42 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	619 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	4.75 mm x 0.79 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	667 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	5.6 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	713 mm x 2.9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	148 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	539 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	84 mm x 4.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	721 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	132.8 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	317 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	725 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	376 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	747 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	82.7 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	522 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	84.4 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	709.4 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee

23481 - 23520 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.