NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	459 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	380 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	198 mm x 17 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	8 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	174 mm x 3.1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	22.7 mm x 1.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	245 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	18.3 mm x 1.9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	278.10 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	295.6 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	304 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	725 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	581 mm x 8.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	430 mm x 6.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	714 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	533 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	718 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	540 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	340.7 mm x 7.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	100.98 mm x 6.99 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	691 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	153.9 mm x 3.1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	701 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	120.15 mm x 2.79 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	757 mm x 5.9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	158.6 mm x 5.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	596.10 mm x 9.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	710 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	601 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	59.14 mm x 4.27 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	647.8 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	122.9 mm x 8.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	655 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	67 mm x 1.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	68.53 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	69.7 mm x 2.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	406.08 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	415 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	421 mm x 1.78 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	809 mm x 4 mm	NBR-Buna	90 Shore A	Nee

23761 - 23800 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.