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O-Rings

FKM O-Ring (Fluorocarbon)

FKM (Fluorocarbon / Viton) O-rings provide superior resistance to high temperatures, chemicals, oils, and fuels. With excellent aging and ozone resistance, they are widely used in demanding applications such as automotive engine systems, chemical processing, aerospace, and oil & gas industries. Our FKM O-rings maintain reliable sealing performance under harsh operating conditions.

Standard and custom dimensions Material options for process conditions OEM / ODM and distributor supply
Primary material Fluorocarbon Rubber (FKM / Viton)
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Dimensions, hardness, color, compound and packaging can be developed from your drawing or sample.

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Reference specifications

Product data

Values below are a reference starting point. Confirm the final compound, dimensions and test requirements for your operating conditions.

MaterialFluorocarbon Rubber (FKM / Viton)
Hardness (Shore A)75 ± 5
Temperature Range-20°C to +200°C
Pressure RangeUp to 35 MPa (static)
ColorBrown / Black (customizable)
StandardAS568 / GB/T 3452.1
ApplicationAutomotive, chemical processing, oil & gas, aerospace
Material grade optionsGeneral / food-contact / medical-grade compound options
Typical mediaMineral oils, fuels, silicone oils, greases and many acids
Media to avoidKetones, low-molecular-weight organic acids, hot water and steam, esters, ethers and phosphate-ester fluids
Available formsO-rings, flat gaskets and custom parts

Application fit

Typical industries and related products

Use these as a starting point. The right selection depends on the full operating environment.

SemiconductorFood & BeverageChemical Processing

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