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O-rings 158.12mm ID x 6.99mm CS Nitrile 70 ShA

Article Number: BS438N70

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Availability: In stock

  • Buy 50 for Rs282.81 each and save 10%
  • Buy 100 for Rs226.68 each and save 28%
  • Buy 500 for Rs141.40 each and save 55%

Quick Overview

British Standard O-ring size:158.12mm ID x 6.99mm CS Nitrile 70 ShA


Nitrile is the most cost effective and commonly available O ring 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 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.

Additional Information

Colour Black
Material Nitrile (NBR)
Internal Diameter (mm) 158.12
CS value 6.99
Cross Section Type Circular
O-ring type British Standard
Hardness (Shore A) 70
Maximum Temperature (°C) 90.00
Minimum Temperature (°C) -30.00
*Dimensions can vary, they are typical only.

Further Information (File Downloads)

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