RS PRO Nitrile Rubber (NBR) O-Ring, 18 mm ID, 21 mm OD, 196-5489

The RS PRO 196-5489 Nitrile Rubber (NBR) O-Ring is a robust, high-quality gasket designed to provide reliable sealing for a broad spectrum of industrial and engineering applications. This O-Ring features an inside diameter of 18 mm and an outside diameter of 21 mm, making it suitable for pumps, drive belts, hydraulics, pneumatics, and various machinery operating under demanding environments.

Constructed from Nitrile Rubber (NBR), this O-ring offers superior chemical resistance and longevity. The material withstands exposure to fats, greases, vegetable oils, and most hydrocarbons, oils, and fuels, ensuring optimum performance and minimizing leakage. The black color enhances visibility for easy installation and maintenance checks.

With a hardness of 71 IRHD, the O-ring provides a balance of flexibility and durability, making it effective for both static and dynamic sealing needs. Its thickness of 1.5 mm and operational temperature range from -30°C to 90°C enable operation in extreme conditions without degradation.

The RS PRO NBR O-Ring can be used in face-to-face and shaft seal configurations and facilitates both rotary and linear movements in mechanical assemblies. Its compatibility across hydraulic, pneumatic, plumbing, power transmission, and automotive sectors showcases its versatility.

RS PRO’s commitment to quality ensures this O-ring has undergone rigorous testing and is manufactured to meet international industry standards. The NBR material delivers a cost-effective solution for seals requiring extended service life, especially when exposed to aggressive fluids.

For industrial users, this O-ring ensures efficient performance, reduced maintenance cycles, and effective protection against particle, vapor, and fluid leakage, thereby preserving pressure and operational safety.

Constructed from Nitrile Rubber (NBR) for excellent chemical resistance. Inner diameter of 18 mm and outer diameter of 21 mm ensure precise sealing. Suitable for temperature ranges from -30°C to 90°C for varied industrial environments.

Hardness rating of 71 IRHD supports durability and long life span. Black colour aids visibility during installation and inspection. Ideal for hydraulic, pneumatic, plumbing, and automotive sealing applications. Provides long-lasting performance in contact with hydrocarbons, oils, and fuels.

Industrial and manufacturing, plumbing, hydraulics, pneumatics, and automotive industries benefit from this reliable sealing solution. Explore the complete RS PRO catalog for additional gaskets, seals, and rubber products at EnvMart.

Explore more products in our Gasket & Seal category.