<h2>10-Pack NBR Rubber O-Ring Seal Gaskets – 0.8mm Cross Section</h2> <p>Keep your equipment leak-free and well-sealed with these precision-made <strong>NBR (Nitrile Butadiene Rubber) O-Ring Gaskets</strong>. Sold in a convenient pack of 10, these black rubber sealing rings are engineered for a reliable, tight fit across a wide range of applications — from watch waterproofing and air conditioning units to hydraulic systems and general mechanical assemblies.</p> <p>Made in Mainland China.</p> <h3>Key Features</h3> <ul> <li> <strong>Material:</strong> High-quality NBR (Nitrile Butadiene Rubber) — black</li> <li> <strong>Cross Section (CS) Thickness:</strong> 0.8mm for a precise, snug seal</li> <li> <strong>Available OD Sizes:</strong> 13.6mm / 18mm / 22.3mm / 25mm / 30.6mm / 32.8mm / 42mm / 47mm / 55mm</li> <li> <strong>Shape:</strong> Standard ring gasket</li> <li> <strong>Pack Quantity:</strong> 10 pieces per lot</li> </ul> <h3>Performance Properties</h3> <ul> <li>✔ <strong>Oil Resistant</strong> — stands up to petroleum-based fluids and lubricants</li> <li>✔ <strong>Wear Resistant</strong> — durable construction for long-lasting performance</li> <li>✔ <strong>Waterproof Sealing</strong> — ideal for watch crowns, tubes, and water-exposed joints</li> <li>✔ <strong>Temperature Resistant</strong> — maintains integrity across a broad temperature range</li> <li>✔ <strong>Flexible &amp; Compressible</strong> — conforms to mating surfaces for an airtight seal</li> </ul> <h3>Common Applications</h3> <ul> <li>Watch waterproofing gaskets</li> <li>Air conditioning and HVAC systems</li> <li>Hydraulic and pneumatic fittings</li> <li>Plumbing and pipe connections</li> <li>General mechanical and industrial sealing</li> </ul> <h3>Specifications</h3> <table> <tbody> <tr> <td><strong>Brand</strong></td> <td>Ouling</td> </tr> <tr> <td><strong>Material</strong></td> <td>NBR Rubber</td> </tr> <tr> <td><strong>Color</strong></td> <td>Black</td> </tr> <tr> <td><strong>Cross Section (CS)</strong></td> <td>0.8mm</td> </tr> <tr> <td><strong>Available OD</strong></td> <td>13.6 / 18 / 22.3 / 25 / 30.6 / 32.8 / 42 / 47 / 55mm</td> </tr> <tr> <td><strong>Quantity</strong></td> <td>10 pcs/lot</td> </tr> <tr> <td><strong>Standard</strong></td> <td>Standard</td> </tr> <tr> <td><strong>Origin</strong></td> <td>Mainland China</td> </tr> </tbody> </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 sizes are available for these NBR O-Ring gaskets?</h4> <p>A: These NBR rubber O-ring gaskets are available in the following outer diameters (OD): 13.6mm, 18mm, 22.3mm, 25mm, 30.6mm, 32.8mm, 42mm, 47mm, and 55mm. All have a cross-section (CS) thickness of 0.8mm.</p> <h4>Q: Are these O-rings suitable for watch waterproofing?</h4> <p>A: Yes! These NBR rubber O-ring seal gaskets are designed for waterproof applications, including watch crowns and cases. Their precise 0.8mm cross-section ensures a reliable, watertight seal for watch components.</p> <h4>Q: What makes NBR rubber a good material for O-ring gaskets?</h4> <p>A: NBR (Nitrile Butadiene Rubber) is highly regarded for its excellent oil resistance, wear resistance, and temperature tolerance, making it ideal for mechanical sealing, HVAC,