Green FKM O-Rings CS 1.9/2.2/4mm Fluoro Rubber Sealing Gaskets

Green FKM Fluoro Rubber O-Rings — Complete Specification Set

Keep your machinery, equipment, and fluid systems sealed and secure with these high-quality green FKM fluororubber O-rings. Available in cross-section (CS) thicknesses of 1.9mm, 2.2mm, and 4mm, this comprehensive assortment ensures you always have the right size on hand for any sealing application.

Why Choose FKM Fluororubber O-Rings?

FKM (fluorocarbon rubber) is engineered for demanding environments. These O-rings deliver outstanding resistance to extreme temperatures, fuels, oils, solvents, and a wide range of chemical media — making them the go-to choice for professionals in industrial and mechanical settings.

• Temperature Resistant: Maintains integrity across a wide temperature range for reliable performance in hot or cold environments
• Chemical & Fluid Resistant: Compatible with oils, fuels, hydraulic fluids, and many chemical media
• Smooth, Burr-Free Surface: Precision-finished for a consistent, leak-free seal every time
• Dimensionally Stable: High adhesive content and quality raw materials resist deformation under pressure
• No Odour & Environmentally Safe: Safe for use in sensitive mechanical environments
• Long-Lasting Colour: Green pigment will not fade with extended use
• Standard Sizing: Conforms to standard O-ring dimensions for straightforward replacement and installation

Wide Range of Applications

These O-rings are suitable for static and dynamic sealing roles across a broad spectrum of industries and equipment types, including:

• Machine tools & industrial equipment
• Automotive systems
• Marine & shipbuilding
• Aerospace equipment
• Metallurgical, chemical & engineering machinery
• Construction & mining machinery
• Petroleum & plastic machinery
• Agricultural machinery
• Instruments & meters

Product Specifications

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Frequently Asked Questions

Q: What does FKM fluororubber mean, and why is it better for sealing applications?

A: FKM stands for fluorocarbon elastomer, a synthetic rubber compound known for its exceptional resistance to high temperatures, oils, fuels, and aggressive chemicals. Compared to standard NBR or EPDM O-rings, FKM O-rings maintain their shape and sealing performance in far more demanding conditions, making them ideal for automotive, industrial, and aerospace applications.

Q: What are the available cross-section (CS) thickness options for these O-rings?

A: These green FKM fluororubber O-rings are available in cross-section (CS) thicknesses of 1.9mm, 2.2mm, and 4mm. The complete specification range ensures you can find the right fit for standard O-ring grooves across a variety of mechanical equipment and fluid systems.

Q: Can these O-rings be used in both static and dynamic sealing applications?

A: Yes. These FKM O-ring gaskets are designed for use in both static (non-moving) and dynamic (moving) sealing environments, working effectively under various liquid and gas media at specified temperatures and pressures. Always verify that the O-ring dimensions match your equipment's groove specifications before installation.

Q: How do I select the correct O-ring size for my application?

A: You need to match both the inner diameter (ID) of the O-ring and its cross-section (CS) thickness to your groove or fitting specifications. These O-rings follow standard sizing conventions, so consulting your equipment's maintenance manual or measuring your existing gasket with calipers will help you select the correct size from this complete specification range.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.