O-ring 20,3x2,4 NBR 80 ShA

Technical Specification and Packaging

Main Description

The O-Ring 20.3x2.4 NBR 80 ShA is a precision industrial sealing ring engineered for demanding applications where enhanced pressure resistance and dimensional stability are required. With an inner diameter of 20.3 mm and a 2.4 mm cross-section, this O-Ring is designed for secure static sealing and selected dynamic uses in hydraulic and pneumatic applications. The product is supplied as a pack of 100 pcs, making it ideal for B2B customers, maintenance teams, and serial production.

Manufactured from NBR (nitrile butadiene rubber) with a hardness of 80 Shore A, this rubber seal offers increased resistance to extrusion compared to standard 70 Shore compounds. The higher hardness improves sealing reliability under elevated pressure and reduces deformation in tight grooves. NBR is widely used in industrial sealing thanks to its excellent chemical resistance to mineral oils, greases, fuels, and common hydraulic fluids.

The O-Ring 20.3x2.4 NBR 80 ShA is commonly applied as a rubber gasket in valves, manifolds, pumps, cylinders, and compact sealing assemblies where precise fit and consistent compression are critical. Its controlled elasticity ensures stable contact with mating surfaces, minimizing leakage risk and supporting high durability over long service intervals. The material maintains reliable performance across typical industrial temperature ranges, making it suitable for continuous operation.

As a standard-size technical sealing component, this O-Ring integrates easily into existing groove designs used in machinery and equipment. It supports predictable installation, repeatable sealing quality, and efficient stock management. The pack of 100 pcs enables cost-effective procurement and reduces downtime during maintenance and replacement cycles.

Designed for professional industrial use, the O-Ring 20.3x2.4 NBR 80 ShA delivers dependable sealing performance where higher hardness and oil resistance are essential.

FAQ - Frequently Asked Questions

What does O-Ring 20.3x2.4 mean?
It indicates an inner diameter of 20.3 mm and a cross-section thickness of 2.4 mm.

Why choose NBR 80 ShA instead of 70 ShA?
80 ShA offers higher resistance to pressure and extrusion, improving sealing stability in demanding applications.

Is this O-Ring suitable for hydraulic systems?
Yes, it is designed for hydraulic and pneumatic applications using mineral oils and similar fluids.

Can this O-Ring be used as a static seal?
Yes, it is primarily intended for static sealing and selected controlled dynamic applications.

How is this product supplied?
It is supplied as a pack of 100 pcs, suitable for B2B and industrial use.