NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	219 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	286.9 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	405 mm x 12 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	373 mm x 3.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	399.6 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	499 mm x 10.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	596.7 mm x 16 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	577 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	674 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	755 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	69 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	123 mm x 3.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	94.88 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	83.7 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	133.08 mm x 1.78 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	158 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	170 mm x 11 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	208 mm x 6.65 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	308 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	344 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	276 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	348 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	423 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	398.6 mm x 7.01 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	499.6 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	637 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	613 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	679.6 mm x 5.34 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	788 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	851 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	913 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	958 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1351 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	20 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	150 mm x 1.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	72.5 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	308 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	319.4 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	402 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	528 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee

25241 - 25280 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.