NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	105.5 mm x 3.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	92.6 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	130 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	154 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	234.4 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	215.10 mm x 12.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	344 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	531 mm x 9.55 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	486 mm x 6.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	602 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	676 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	2.85 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	5.3 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	7.6 mm x 2.1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	24 mm x 8.75 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	39.6 mm x 3.55 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	28.4 mm x 1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	37.6 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	49.6 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	54.6 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	75.93 mm x 1.75 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	145 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	152 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	3.56 mm x 1.27 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	15.04 mm x 2.92 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	23.75 mm x 0.61 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	25.6 mm x 5.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	43.83 mm x 6.99 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	38 mm x 2.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	50.4 mm x 1.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	67.32 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	142 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	82.6 mm x 3.55 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	102 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	171 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	190.6 mm x 1.78 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	509 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	450 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	552 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	616 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee

25481 - 25520 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.