• O-Ring Groove Design Guides Expert Application Engineering Assistance. O-ring groove design guides offer default dimensional guidance on the most basic o-ring groove design applications. The best o-rings are useless without the right groove design which becomes increasingly important the more demanding the application environment.
• And thus prolong the service life of O-rings. The Parbak® numbers correspond to the size designa-tions of the 2-xxx series of the Parker O-rings they are installed with (e.g. 8-211, N 300-90 fits O-ring 2-211, N 674-70). ParCoat® Coating O-rings with ParCoat ® coatings can be assembled with low exertion of force using automatic equipment.
• General Engineering Menu O-Rings Suppliers Molded O-Rings Services. O-Rings Design Guidelines, Specifications, Materials. An O-ring, also known as a packing, is a flexible gasket in the shape of a loop; it is a elastomer with a round cross-section designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.

1. O Ring Groove Size Chart Pdf
2. O Ring Slot Chart Generator

O Ring Groove Size Chart Pdf

Standard Extended Rings need Standard Bases/Mounts. (Extension =.625 inch) Burris Signature Pos-Align Offset Inserts Used to correct mis-alignment caused by receiver holes drilled off center, or if the bases or rings are slightly off perfect center.

Standard O-Ring Size Chart

Download the O-Ring Size Chart to view standard sizes (O-rings are measured in millimeters).

How to Measure O-Rings

O-Rings are one of the most common types of seals in the world. With an unlimited number of possible manufacturing sizes, they are used various applications across industries. These round mechanical seals keep gas or liquid from passing through an opening but over time, they may wear out and require replacement. If you’re planning to replace an O-ring, a good fit is critical for successful sealing.

Below are the steps to take to properly measure for a new or replacement O-Ring.

• Place the O-ring on a clean, flat, level surface.
• Determine the inside diameter by using a ruler to measure from one inner edge to another.
• Use a ruler to measure the diameter, from one outer corner of the O-ring to the other outer corner.
• Finally, measure the cross-section. Place the O-ring into a vernier caliper. Lightly clamp the jaws of the caliper onto the O-ring, but do not compress it. Record the thickness of the ring (the cross-section, see image for reference).

O Ring Slot Chart Generator

More Resources and Quick Links

• Shop our selection of popular brand O-Rings, like Alfas, Buna, EPR, Viton, and more!
• Check out this post, A Simple Guide to Selection an O-ring for more detailed information.
• Need Parker O-Ring Sizing Gauges? We have those!
• Complete your set up with the Parker O-Ring Installation and Extraction Tools

For more information about O-ring sizes, applications, or orders, contact our team!