As a key and critical supplier to many industries we remain open and dispatching as normal.
Bearing Search
Inside Diameter
Outside Diameter
Belt Search
Belt Length
Why Us?
 1000's of items in stock
 Established in 2006
 Free Shipping
 Next Day Available
 100,000+ happy customers
 5,000,000+ items delivered
We accept Visa, Mastercard and American Express

O-rings Technical Data

Material Data for Nitrile & Viton O-rings

Last Modified: 28th Jun 2018

 Nitrile rubber is still the most widely used elastomer for O-rings.


It has an excellent resistance to petroleum based oils and fuels, silicone greases, hydraulic fluids, water and alcohols. It has a great balance of working properties such as low compression set, high tensile strength, high abrasion resistance, combined with a low material costs.

  • Buna N
  • Standard temperature range: -40°C to +135°C
  • Shore Hardness: 75 (Standard)
  • Colour: Black 


Viton® Orings have exceptional resistance to high temperatures up to 200°C and aggressive fuels & chemicals. Viton is now commonly used on O-rings, as well as rotary shaft seals & gaskets due to these reasons.

  • Viton®
  • Standard Temp Range: -40°C to 200°C
  • Broad Chemical Resistance
  • Superior Thermal Stability
  • Colour: Brown/Green/Black
  • Shore Hardness: 70 to 90