Standard O-rings

Standard O-rings

O-rings are in widespread use for the following reasons:

  • very simple geometry
  • they require very little space for their housings
  • available in a wide range of sizes and materials
  • suitable for use in both static and dynamic applications
  • very low-cost when manufactured in large volumes
  • conformity to international standards

A comprehensive list of over 3,700 International O-ring sizes and O-ring tolerances can be viewed under "More information" below.  Standard O-ring sizes will be in the International O-ring size chart, for other sizes click here Non-Standard O-rings.

Our online shop features a small part of our product range which we will be expanding to include our other products.

Please call customer services for any material or size combinations not being sold online.

Which material?

We stock a full range of materials including Nitrile, Viton®, Silicone, EPDM and Neoprene®.  Whilst other materials such as Fluorosilicone, HNBR, Epichlorohydrin, AFLAS®, Polyacrylate and Ethylene Acrylic are available on short lead times.

If you are unsure of which material to use please use our Chemical Compatibility Guide or call customer services for advice.

More information:
O-ring Housing dimensions
O-ring ISO 3601-1 tolerances
International O-ring size chart

Refine Search

Product Compare (0)
Sort By:
Show:
Article No. OD ID CS Ref. Material
  Price breaks
Each  
QTY ADD
OR3x1-V75 5 3 1 FKM 75 10+ 50+ 100+ 250+ MORE
£0.17 £0.08 £0.06 £0.05 CALL
OR3x1-N70 5 3 1 Nitrile 70 10+ 25+ 50+ 100+ 250+ 500+ MORE
£0.15 £0.07 £0.06 £0.04 £0.03 £0.02 CALL
OR3.5x1-V75 5.5 3.5 1 FKM 75 10+ 50+ 100+ 250+ MORE
£0.17 £0.08 £0.06 £0.05 CALL
OR3.5x1-N70 5.5 3.5 1 Nitrile 70 10+ 25+ 50+ 100+ 250+ 500+ MORE
£0.15 £0.07 £0.06 £0.04 £0.03 £0.02 CALL
OR4x1-V75 6 4 1 FKM 75 10+ 50+ 100+ 250+ MORE
£0.17 £0.08 £0.06 £0.05 CALL
OR4x1-N70 6 4 1 Nitrile 70 10+ 25+ 50+ 100+ 250+ 500+ MORE
£0.15 £0.07 £0.06 £0.04 £0.03 £0.02 CALL
OR4.5x1-V75 6.5 4.5 1 FKM 75 10+ 50+ 100+ 250+ MORE
£0.17 £0.08 £0.06 £0.05 CALL
OR4.5x1-N70 6.5 4.5 1 Nitrile 70 10+ 25+ 50+ 100+ 250+ 500+ MORE
£0.15 £0.07 £0.06 £0.04 £0.03 £0.02 CALL
OR5x1-V75 7 5 1 FKM 75 10+ 50+ 100+ 250+ MORE
£0.17 £0.08 £0.06 £0.05 CALL
OR5x1-N70 7 5 1 Nitrile 70 10+ 25+ 50+ 100+ 250+ 500+ MORE
£0.15 £0.07 £0.06 £0.04 £0.03 £0.02 CALL
Add to cart
Showing 11 to 20 of 7499 (750 Pages)