McMasters Koss Company

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Royal Oak, MI  |  800-548-0089

OEMs love our managed inventory and consignment programs! McMasters Koss is a QS 9000/ISO 9002 manufacturer of standard and metric seals, o-rings, gaskets, oil seals, diaphragms, caps and custom-molded shapes in buna, Viton®, silicone, HNBR, EDPM, neoprene, perfluoro and more. We have it in stock!

O-Rings Power Pages

O-Rings

O-Rings

An O-ring is a round elastic loop that is used as a seal for static and dynamic applications. Their main purpose is to serve as a seal between structures such as pipes, tubes, in pistons, and cylinders. O-rings are made of various materials depending on how they will be used and are highly pliable...

Rubber O-Rings

Rubber O-Rings

A rubber O ring is a mechanical gasket in the shape of a torus or donut and is used for static and dynamic applications where there is relative motion between parts and the possibility of friction. Some of the benefits of rubber O rings are...

Hydraulic Seals

Hydraulic Seals

Hydraulic seals are a form of gasket-like rings that are used to fill gaps between hydraulic cylinder components. Many different components are found in hydraulic cylinders, some of which get in...

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