+44 (0) 1420 474123
£ British Pound Sterling (GBP)
Change currency:
  • € Euro (EUR)
  • Rs Indian Rupee (INR)
  • zł Polish Zloty (PLN)
  • $ US Dollar (USD)
You have no items in your shopping cart.

O-rings 31.47mm ID x 1.78mm CS Nitrile 70 ShA

Article Number: BS026N70

Be the first to review this product

Availability: In stock

  • Buy 50 for £0.10 each and save 17%
  • Buy 100 for £0.08 each and save 34%
  • Buy 500 for £0.07 each and save 42%

Quick Overview

British Standard O-ring size:31.47mm ID x 1.78mm CS Nitrile 70 ShA


Nitrile is the most cost effective and commonly available O ring seal material. Ideal for use as seals for pumps, drive belts, and other general engineering applications in the hydraulic and pneumatic industry. NBR is good for applications where the rubber O ring is exposed to fats, greases and animal or vegetable oils. For applications requiring contact with diesel or temperatures higher than 120°C you may wish to consider a Polymax FKM (Viton®) O ring seal.

Additional Information

Colour Black
Material Nitrile (NBR)
Internal Diameter (mm) 31.47
Cross Section Diameter (mm) 1.78
Cross Section Type Circular
O-ring type British Standard
Hardness (Shore A) 70
Maximum Temperature (°C) 90
Minimum Temperature (°C) -30
*Dimensions can vary, they are typical only.

Further Information (File Downloads)