NBR (Nitrile Butadiene Rubber) offers superior resistance to oils, fuels, and solvents compared to many other elastomers. Unlike EPDM (which has better weather resistance but poor oil resistance) or Silicone (which has a wider temperature range but lower tear strength), NBR provides the best balance for petroleum-based fluid applications. Its 70A hardness offers excellent mechanical properties for most industrial sealing needs.

These Metric NBR O-Ring Seals with 1.8mm cross section are suitable for pressure applications up to 1500 PSI in properly designed glands. Actual pressure rating depends on gland design, temperature, media, and dynamic/static application conditions. For higher-pressure applications, consult with our technical team for appropriate gland design recommendations.

Yes, we offer custom sizing and material options for larger quantities. While we stock the most popular metric sizes from 1.8mm to 130mm ID with 1.8mm cross-section, we can produce custom sizes for orders over 1000 pieces. We also offer different NBR compounds for specific applications, including low-temperature variants and food-grade options. Contact our sales team for custom requirements.

Yes, NBR material offers excellent resistance to gasoline, diesel, and most petroleum-based fuels. These Metric NBR O-Ring Seals are commonly used in automotive fuel systems. However, for ethanol-blended fuels (E85) or methanol, specialized fuel-resistant compounds may be recommended. Contact us for specific fuel compatibility questions.

Properly stored NBR O-rings have a shelf life of approximately 8-10 years. Store in a cool, dry place away from direct sunlight, ozone sources, and extreme temperatures. Avoid storing near electrical motors or other ozone-generating equipment. Keep in original packaging until ready for use.