<h2>Ouling FKM Fluoro Rubber O-Ring Seal Set – 10 Pieces</h2> <p>Keep your equipment leak-free and running smoothly with these premium <strong>FKM Fluoro Rubber O-Rings</strong> from Ouling. Engineered for demanding applications, these green fluorocarbon rubber gaskets deliver outstanding waterproofing, chemical resistance, and long-lasting wear performance — making them ideal for hydraulic systems, plumbing, automotive, pneumatic tools, and industrial machinery.</p> <h3>Product Highlights</h3> <ul> <li> <strong>Material:</strong> High-quality FKM (Fluoro Rubber) — superior resistance to oils, fuels, hydraulic fluids, and a wide range of chemicals</li> <li> <strong>Cross-Section (CS) Options:</strong> 1.9mm, 2.2mm, 4mm — select the size that fits your application</li> <li> <strong>Outer Diameter (OD) Range:</strong> 5mm to 150mm — highly versatile for multiple fittings and connections</li> <li> <strong>Waterproof &amp; Wear-Resistant:</strong> Maintains a reliable seal even under pressure, moisture, and temperature fluctuations</li> <li> <strong>Standard Sizing:</strong> Manufactured to industry-standard dimensions for easy fitment</li> <li> <strong>Pack of 10:</strong> Great value multi-pack to keep on hand for maintenance and repair tasks</li> <li> <strong>Color:</strong> Green — easy to identify for fluorocarbon grade rubber</li> </ul> <h3>Specifications</h3> <table> <tbody> <tr> <td><strong>Brand</strong></td> <td>Ouling</td> </tr> <tr> <td><strong>Material</strong></td> <td>FKM Fluoro Rubber</td> </tr> <tr> <td><strong>Cross-Section (CS)</strong></td> <td>1.9mm / 2.2mm / 4mm</td> </tr> <tr> <td><strong>Outer Diameter (OD)</strong></td> <td>5mm – 150mm</td> </tr> <tr> <td><strong>Color</strong></td> <td>Green</td> </tr> <tr> <td><strong>Quantity</strong></td> <td>10 Pieces per Pack</td> </tr> <tr> <td><strong>Standard</strong></td> <td>Standard Sizing</td> </tr> <tr> <td><strong>Origin</strong></td> <td>Made in China</td> </tr> </tbody> </table> <h3>Common Applications</h3> <ul> <li>Hydraulic and pneumatic systems</li> <li>Automotive engines, fuel systems, and transmissions</li> <li>Industrial pipe fittings and valves</li> <li>Plumbing connections and water equipment</li> <li>Pumps, compressors, and sealing assemblies</li> </ul> <h3>Related Products You May Like</h3> <p>Looking for more workshop and hardware essentials? Check out these great options from our store:</p> <ul> <li><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></li> <li><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></li> <li><a href="/products/10pcs-2-pin-quick-splice-spring-wire-connectors-lock-terminals">10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals</a></li> </ul> <p>Learn more: <a href="https://www.osha.gov/eye-face-protection" target="_blank" rel="noopener">OSHA on eye and face protection</a></p> <h3>Frequently Asked Questions</h3> <h4>Q: What makes FKM fluoro rubber O-rings better than standard rubber O-rings?</h4> <p>A: FKM (Fluorocarbon) rubber O-rings outperform standard nitrile or EPDM rubber in high-temperature environments and when exposed to aggressive chemicals such as oils, fuels, hydraulic fluids, and solvents. Their superior wear resistance and waterproof sealing make them the preferred choice for demanding industrial and automotive applications.</p> <h4>Q: What sizes are available in this O-ring set?</h4> <p>A: This listing offers cross-section (CS) options of 1.9mm, 2.2mm, and 4mm, with outer diameter (OD) choices ranging from 5mm to 150mm. Each pack contains 10 pieces of your selected size combination, making it easy to stock up for maintenance or repairs.</p> <h4>Q: Are these FKM O-rings