<h2>FKM Fluoro Rubber O-Ring Seals – Black, Multiple Cross-Sections</h2> <p>Keep your systems leak-free with these professional-grade <strong>FKM (Fluorocarbon) Rubber O-Ring Seals</strong>. Available in 2.5mm, 3mm, and 5.7mm cross-section thicknesses, these black ring gaskets deliver a reliable, durable seal for a wide range of industrial and home applications. Made in Mainland China by Ouling, a dedicated seal manufacturer.</p> <h3>Why Choose These FKM O-Rings?</h3> <ul> <li> <strong>Superior Oil Resistance:</strong> FKM fluorocarbon rubber withstands exposure to oils, fuels, and hydraulic fluids without degrading.</li> <li> <strong>Excellent Wear Resistance:</strong> Engineered to endure repeated mechanical contact, maintaining a tight, consistent seal over time.</li> <li> <strong>High Temperature Resistance:</strong> Performs reliably across a broad temperature range, making it suitable for demanding environments including air conditioning systems.</li> <li> <strong>Standard Ring Gasket Shape:</strong> Classic O-ring profile fits standard grooves and hardware for easy installation.</li> <li> <strong>Versatile Applications:</strong> Ideal for factories, workshops, plumbing, air conditioning units, machinery, and home repair projects.</li> <li> <strong>Safe Packaging:</strong> Each order is packed securely to protect integrity during shipping and storage.</li> </ul> <h3>Product Specifications</h3> <table style="width:100%; border-collapse:collapse;"> <tr style="background:#f5f5f5;"> <th style="text-align:left; padding:8px; border:1px solid #ddd;">Specification</th> <th style="text-align:left; padding:8px; border:1px solid #ddd;">Details</th> </tr> <tr> <td style="padding:8px; border:1px solid #ddd;">Material</td> <td style="padding:8px; border:1px solid #ddd;">FKM Fluorocarbon Rubber</td> </tr> <tr style="background:#f5f5f5;"> <td style="padding:8px; border:1px solid #ddd;">Color</td> <td style="padding:8px; border:1px solid #ddd;">Black</td> </tr> <tr> <td style="padding:8px; border:1px solid #ddd;">Cross-Section Thickness</td> <td style="padding:8px; border:1px solid #ddd;">2.5mm / 3mm / 5.7mm</td> </tr> <tr style="background:#f5f5f5;"> <td style="padding:8px; border:1px solid #ddd;">Shape</td> <td style="padding:8px; border:1px solid #ddd;">Ring Gasket (O-Ring)</td> </tr> <tr> <td style="padding:8px; border:1px solid #ddd;">Standard</td> <td style="padding:8px; border:1px solid #ddd;">Standard</td> </tr> <tr style="background:#f5f5f5;"> <td style="padding:8px; border:1px solid #ddd;">Suitable For</td> <td style="padding:8px; border:1px solid #ddd;">Factories, Homes, Air Conditioning, Machinery</td> </tr> <tr> <td style="padding:8px; border:1px solid #ddd;">Brand</td> <td style="padding:8px; border:1px solid #ddd;">Ouling</td> </tr> <tr style="background:#f5f5f5;"> <td style="padding:8px; border:1px solid #ddd;">Country of Origin</td> <td style="padding:8px; border:1px solid #ddd;">Made in Mainland China</td> </tr> </table> <h3>Great for These Common Uses</h3> <ul> <li>Air conditioning and HVAC systems</li> <li>Hydraulic and pneumatic equipment</li> <li>Plumbing fixtures and fittings</li> <li>Automotive engine and fuel system maintenance</li> <li>Industrial machinery sealing</li> <li>Home appliance repair</li> </ul> <p>Looking for other useful accessories for your workshop or home? Check out these related products:</p> <ul> <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> <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/10-20mm-diamond-flat-grinding-wheel-dry-and-wet-use-heavy-duty-concrete-grinder-wheel-blue-vacuum-brazed">10/20mm Diamond F