O-rings & X-rings
HITEC® O-ring DW EPDM 70.503-00 (Successor of HITEC® O-ring EPDM 70.10-02)Number of articles in this product: 702
PERTEC® O-ring CIP FKM 75.501-04 (Only while stocks last)Number of articles in this product: 170
HITEC® O-ring EPDM 70.10-02 (Only while stocks last)Number of articles in this product: 270
A comprehensive range of O-rings
O-rings and X-rings are essential sealing components used across industrial machinery, hydraulics, pneumatics, automotive systems, chemical processing, food production and OEM engineering applications. These precision sealing solutions help prevent leakage of liquids, gases and lubricants in both static and dynamic environments. APSOparts offers a wide range of industrial O-rings and X-rings manufactured from high-quality materials to ensure resistance against pressure, temperature, chemicals and wear. X-rings, also known as quad rings, provide improved sealing performance with reduced friction and enhanced durability compared to standard O-rings, especially in dynamic applications. Our sealing solutions are widely used in pumps, valves, cylinders, compressors, hydraulic systems, pneumatic equipment and industrial automation systems. Whether you are looking for sealing components for maintenance, OEM production or engineering projects, APSOparts provides reliable industrial sealing products designed for demanding applications across multiple industries. O-rings have proven to be the preferred sealing element in almost all industries thanks to their simple geometry and high sealing performance. Constantly increasing demands on the O-ring require continuous development in the field of materials. Angst+Pfister takes this into account.
Angst+Pfister's range of O-rings covers the entire spectrum, from high -performance elastomers to materials for standard applications - all at an excellent price-performance ratio.
Thanks to a very large availability ex stock, our customers benefit from short delivery times. APSOparts® - Angst+Pfister's online shop offers a wide range of product variants and dimensions of these products.
Kalrez® Perfluor (FFKM) O-rings
Kalrez® O-rings are resistant to almost all chemicals and can be used at temperatures of +350°C for short periods or +327°C in continuous operation. They are also available with FDA or USP VI approval.
As an authorized distributor of DuPont Performance Polymers, Angst+Pfister has a wide range of Kalrez® O-rings in the materials Kalrez® 4079, Kalrez® 6375, Kalrez® 6230, and Kalrez® 6221 and has direct access to all other materials and special dimensions.
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FEP-O-SEAL® O-Rings
FEP-O-SEAL® seals ideally combine the elastic properties of elastomer O-rings and the chemical resistance of FEP. FEP-O-SEAL® O-rings consist of two components: a seamless envelope of FEP and an elastomer core which guarantees dimensional stability. These O-rings are coated with a layer of fluoroethylene propylene to increase abrasion resistance and permeability. Our FEP-encapsulated O-rings have a core made of VMQ or FKM and are available from stock.
Download our technical overview of our FEP-O-SEAL® O-Rings
HITEC® Precision O-Rings
The HITEC® brand stands for O-rings that meet very high standards and fulfill approval and conformity requirements in the drinking water, pharmaceutical, food and gas sectors. HITEC® O-rings are only manufactured in one factory and all materials have a clearly defined recipe,thereby allowing full traceability. The stock range includes an EPDM 70 Shore with over 15 approvals, an NBR 70 Shore, an FKM 75 Shore and a VMQ 70 Shore.
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NORMATEC® O-rings
The NORMATEC® O-ring range includes O-rings of good industrial quality that meet standard requirements. As quality sealing elements, NORMATEC® O-rings are specially designed for high-volume applications: An efficient network of modern and rationally producing manufacturers in Europe and Asia results in a very good price/performance ratio. The NORMATEC O-rings are available in NBR 60, 70 and 90 Shore as well as in FKM black and green.
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X-Rings
The X-Ring is a double-acting four-lip seal for static and dynamic applications. Thanks to the 4 sealing lips, it is possible to work with less compression, which has a positive effect on the friction behaviour. NBR 70 Shore A X-rings made of nitrile rubber are available from stock.
Contact us!
If you cannot find the right product in our online shop or if you require a custom-made component, get in touch with our Angst+Pfister specialists.






















