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<h2>Green FKM Fluorine Rubber O-Rings – CS3mm Seals & Gasket Washers</h2> <p>Keep your mechanical systems sealed and leak-free with these high-performance <strong>Green FKM (Fluoroelastomer) Rubber O-Rings</strong>. With a 3mm cross-section (CS3mm), these standard ring gaskets are engineered for demanding industrial and mechanical applications where temperature resistance, chemical durability, and wear resistance are essential.</p> <h3>Why Choose FKM Fluorine Rubber O-Rings?</h3> <p>FKM (Viton-type) fluoroelastomer is one of the most durable sealing materials available. It withstands extreme temperatures, aggressive chemicals, oils, fuels, and solvents — making it the go-to choice for automotive, hydraulic, pneumatic, and industrial sealing applications.</p> <h3>Key Features</h3> <ul> <li> <strong>Material:</strong> High-grade FKM Fluorine Rubber (Fluoroelastomer)</li> <li> <strong>Cross-Section:</strong> CS3mm — a versatile standard size for a wide range of fittings and ports</li> <li> <strong>Color:</strong> Green — easily distinguishable from standard NBR/EPDM o-rings for quick identification</li> <li> <strong>Temperature Resistant:</strong> Performs reliably across a wide range of high and low temperatures</li> <li> <strong>Wear-Resistant:</strong> Superior abrasion and extrusion resistance extends service life</li> <li> <strong>Chemical Resistant:</strong> Excellent resistance to oils, fuels, hydraulic fluids, and many solvents</li> <li> <strong>Shape:</strong> Standard Ring Gasket — compatible with industry-standard grooves and housings</li> <li> <strong>Standard Sizing:</strong> Manufactured to standard dimensions for broad compatibility</li> </ul> <h3>Typical Applications</h3> <ul> <li>Automotive engines, transmissions, and fuel systems</li> <li>Hydraulic and pneumatic equipment</li> <li>Industrial pumps, valves, and compressors</li> <li>Pipe fittings and fluid connectors</li> <li>Chemical processing equipment</li> <li>Aerospace and marine sealing systems</li> </ul> <h3>Specifications</h3> <table> <tr> <td><strong>Brand</strong></td> <td>Ouling</td> </tr> <tr> <td><strong>Material</strong></td> <td>FKM Fluorine Rubber (Fluoroelastomer)</td> </tr> <tr> <td><strong>Cross-Section (CS)</strong></td> <td>3mm</td> </tr> <tr> <td><strong>Color</strong></td> <td>Green</td> </tr> <tr> <td><strong>Shape</strong></td> <td>Ring Gasket</td> </tr> <tr> <td><strong>Standard</strong></td> <td>Standard Sizing</td> </tr> <tr> <td><strong>Country of Origin</strong></td> <td>Made in Mainland China</td> </tr> </table> <h3>Related Products You May Like</h3> <p>Looking for other sealing and fastening solutions? Check out our <a href="/products/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge">10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips</a> or our <a href="/products/10pcs-durable-gold-blade-nut-metal-universal-trimmer-accessories-anti-loosening-line-left-hand-thread-replacement-parts-1">10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories</a> for comprehensive hardware needs.</p> <p>Learn more: <a href="https://www.osha.gov/hand-power-tools" target="_blank" rel="noopener">OSHA guidance on hand and power tools</a></p> <h3>Frequently Asked Questions</h3> <h4>Q: What is FKM fluorine rubber, and why is it used for O-rings?</h4> <p>A: FKM (Fluoroelastomer, also known by the trade name Viton) is a synthetic rubber compound with exceptional resistance to high temperatures, oils, fuels, and chemicals. FKM fluorine rubber O-rings are preferred in demanding industrial, automotive, and hydraulic applications because they maintain their sealing integrity where standard rubber O-rings would degrade or fail.</p> <h4>Q: What does CS3mm mean for an O-ring?</h4> <p>A: "CS" stands for Cross-Section, which is the diameter of the rubber cord that forms the O-ring. A CS3mm O-ring has a 3mm thick cross-section. This measurement is critical when selecting the right O-r
