NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	6.3 mm x 1.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	677 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	7.9 mm x 0.51 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	494 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	684 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	505 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	589 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	11.11 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	557 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	477 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	486 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	501 mm x 6.99 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	184 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	256 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	261 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	27.28 mm x 2.38 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	433 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	42.5 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	638 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	43.76 mm x 1.78 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	750 mm x 6.35 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	30.44 mm x 1.78 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	31.3 mm x 4.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	39 mm x 1.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	64.50 mm x 2.49 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	56.26 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	68 mm x 1.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	59.100 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	50.10 mm x 2.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	53 mm x 3.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	146 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	164 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	151 mm x 1.78 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	168.4 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	47 mm x 2.13 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	198 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	596 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	564 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	604 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	651 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee

23561 - 23600 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.