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O-Rings - Viton® FKM (FPM), Brown, 60 Shore A
O-rings are circular sealing rings with a round cross-section. When an O-ring is fitted into a groove and compressed between two surfaces, it forms a seal that prevents the escape of liquids or gases. O-rings are suitable for both static and dynamic applications.
These O-rings are made from Viton® FKM (FPM) fluoroelastomer, which has excellent resistance to high temperatures, mineral oils and fuels. At 60 Shore A, the material is soft and flexible, so it conforms well to rough or uneven surfaces and seals with low compression force, making it well suited to low-pressure applications.
Chemical Compatibility
FKM is recommended for use with mineral oils and greases, petrol and diesel fuels, aliphatic and aromatic hydrocarbons, silicone oils and many acids. It also has excellent resistance to ozone and weathering.
Limitations
FKM is not recommended for use with ketones (such as acetone), organic acids (such as acetic acid), glycol-based brake fluids, hot water and steam, ammonia, amines or phosphate-ester hydraulic fluids. Fuels with a high alcohol content (such as E85 or methanol blends) may require a specialist grade. As a soft compound, 60 Shore A FKM is not recommended for high-pressure applications, where a harder grade is required to prevent extrusion.
Applications
These O-rings are suitable for low-pressure sealing in valves, pumps, fuel systems, automotive components and general industrial machinery, and for assemblies with delicate components such as plastic or glass, where low sealing force is needed.
Installation Guidance
Make sure that the groove and mating surfaces are clean and free from burrs. The 60 Shore A compound requires little force to fit and seals well against rough or uneven surfaces. Apply a thin film of compatible lubricant before fitting, and do not stretch or roll the O-ring over sharp edges or threads.
All dimensions are nominal. The information provided by AH Design Components Ltd is for reference only and is not a manufacturing specification. Please confirm that the product is suitable for your application before use.
