<h2>NBR Nitrile O-Ring Rubber Gaskets – Complete Specifications, Large Inventory</h2> <p>Keep your machinery, plumbing, and industrial equipment leak-free with these premium <strong>NBR Nitrile O-Ring Gaskets</strong>. Available in 1.5mm and 5.3mm cross-section (CS) thicknesses, these standard-size sealing rings are made from high-quality nitrile rubber for outstanding sealing performance across a wide range of applications.</p> <p>The surface of each O-ring is smooth and precisely formed — no burrs, no flash, and no fading over long-term use. High adhesive content ensures a reliable, odor-free seal that resists deformation, making these rings a safe and environmentally responsible choice.</p> <h3>Key Features</h3> <ul> <li> <strong>Material:</strong> High-grade NBR (Nitrile Butadiene Rubber) — excellent resistance to oils, fuels, and hydraulic fluids</li> <li> <strong>Cross-Section Thickness:</strong> 1.5mm / 5.3mm CS options available</li> <li> <strong>Shape:</strong> Standard ring gasket profile for universal fitment</li> <li> <strong>Temperature Resistant:</strong> Maintains sealing integrity across a broad temperature range</li> <li> <strong>Smooth Surface Finish:</strong> Burr-free, texture-free, and consistent in dimension</li> <li> <strong>No Odor:</strong> Safe and environmentally friendly formulation</li> <li> <strong>Durable &amp; Non-Deforming:</strong> Retains shape and seal under pressure in both static and dynamic applications</li> <li> <strong>Complete Specifications:</strong> Large inventory with full size range available</li> </ul> <h3>Wide Range of Applications</h3> <p>These O-rings are designed for installation on a variety of mechanical equipment operating at specified temperatures and pressures, in liquid and gas media. They perform reliably in both static and dynamic (moving) states. Ideal for use in:</p> <ul> <li>Machine tools &amp; general engineering machinery</li> <li>Automotive &amp; marine (ships) applications</li> <li>Aerospace &amp; metallurgical machinery</li> <li>Chemical, construction, and mining machinery</li> <li>Petroleum &amp; plastic machinery</li> <li>Agricultural machinery</li> <li>Instruments and meters of all types</li> </ul> <h3>Product Specifications</h3> <table> <tr> <td><strong>Brand</strong></td> <td>Ouling</td> </tr> <tr> <td><strong>Material</strong></td> <td>NBR Nitrile Rubber</td> </tr> <tr> <td><strong>Cross-Section (CS)</strong></td> <td>1.5mm / 5.3mm</td> </tr> <tr> <td><strong>Shape</strong></td> <td>Ring Gasket</td> </tr> <tr> <td><strong>Standard</strong></td> <td>Standard</td> </tr> <tr> <td><strong>Country of Origin</strong></td> <td>Made in China</td> </tr> </table> <h3>Related Products You May Like</h3> <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 Flat Grinding Wheel – Dry and Wet Use Heavy Duty</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 material are these O-rings made from, and why does it matter?</h4> <p>A: These O-rings are made from NBR (Nitrile Butadiene Rubber), a synthetic rubber known for its excellent resistance to petroleum-based oils, hydraulic fluids, fuels, and a wide range of liquid and gas media. This makes NBR nitrile O-rings ideal for use in automotive, industrial, and mechanical sealing applications where exposure to oils and chemicals is common.</p> <h4>Q: What cross-section (CS) thickness options are available?</h4> <p>A: