O Ring Specification

It is a loop of 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.

O ring specification.

Find the right size o rings quad rings x rings and square rings for your application. Please contact us if you are looking for a size not shown in the 5 32 group. Find as568 o ring standard sizes by cross section inside diameter and outside diameter in our o ring size chart and separate o ring tolerance chart. The o ring may be used in static applications or in dynamic applications where there is relative motion between.

Danco 8 o ring 10 pack model 96725 2 57 2 57. Refer to our o ring sizing charts for the most commonly used sizes around the world like. And metric o ring sizes. O rings are specified by i d.

For other o ring materials be sure to. Free delivery with 45 order. Refer to our standard o ring size chart to find usa as568 o ring dimensions. In de signing this new group of o rings we left spacing in the part numbers to allow us to add additional sizes should they be required.

An o ring also known as a packing or a toric joint is a mechanical gasket in the shape of a torus. Custom and non standard o ring sizes available with no tooling or setup fees. O rings are available in various standard sizes. Various o ring compounds exhibit different shrinkage rates during molding.

Usa as568 o ring standard sizes are the most commonly used o ring sizes in the world. O d is for reference only. Inside diamter width cross section shrinkage size adjustment. Free delivery with 45 order.

The best o rings are useless without the right groove design which becomes increasingly important the more demanding the application environment. Review the general o ring groove design considerations before moving onto the. The normal o ring sizes herein shown are based upon a 70 durometer nitrile standard. Danco large o ring assortment 45 piece model 10825 4 98 4 98.

Select a size to buy standard and custom o rings from the world s largest inventory network or custom orders can be made within a few weeks typically without tooling fees. O ring groove design guides offer default dimensional guidance on the most basic o ring groove design applications. Set your store to see local availability add to cart. Until now o ring standards have left a gap between the 1 8 and 3 16 nominal cross sections.

Nominal cross section o rings. The standard sizes used by o ring manufacturers in the united states are defined by aerospace standard as568b aerospace size standard for o rings. Usa as568 o ring standard sizing chart common metric o ring sizing chart japanese jis o ring sizing chart british bs o ring sizing chart quad ring seals x ring sizing charts square ring sizing chart.