NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	749 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	679 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	711.3 mm x 9.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	10.92 mm x 1.91 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	11.52 mm x 3.96 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	12.7 mm x 4.96 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	694 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	32.12 mm x 3.45 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	114 mm x 1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	23.3 mm x 2.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	24 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	24.8 mm x 1.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	254 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	383 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	261 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	542 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	11.5 mm x 1.1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	271 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	458 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	283.2 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	471 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	294 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	481.47 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	24.100 mm x 1.27 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	11.85 mm x 2.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	13 mm x 1.75 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	32.8 mm x 3.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	74.8 mm x 3.25 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	76.3 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	91.6 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	93.27 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	765 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	94.98 mm x 1.75 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	787 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	805 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	825 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	788 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	814 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	829.7 mm x 6.98 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	846 mm x 7 mm	NBR-Buna	90 Shore A	Nee

24281 - 24320 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.