Nitrile (Buna-N / NBR) O-Rings – Oil-Resistant, Durable & Budget-Friendly Seals

Nitrile (Buna-N / NBR) O-Rings Key Features & Benefits

• Excellent Oil Resistance – Reliable sealing against gasoline, diesel, lubricating oils, and other petroleum-based fluids

• Οικονομική – More economical than premium elastomers like Viton® while still providing dependable performance

• Abrasion Resistant – Suitable for long-term use in dynamic applications

• Available in Various Hardness Levels – Shore A 40–90 to match different sealing pressures and conditions

• Custom Colors – Black, brown, blue, green, and custom shades available

Nitrile (Buna-N / NBR) O-Rings Typical Applications

• Automotive fuel, oil, and gearbox seals

• Υδραυλικά και πνευματικά συστήματα

• Industrial machinery using petroleum-based fluids

• O-Ring kits for maintenance and service (bulk NBR O-Ring sets)

• Affordable sealing for high-volume OEM requirements

Comparison: NBR vs. Other Common Materials

Related Resources for O-Ring Buyers

• O-Ring Collection Page: https://hengoseal.com/product-category/o-ring-manufacturer/

• O-Ring Solutions Guide: https://hengoseal.com/o-ring-guide/

• Nitrile Rubber O-Rings Guide: https://hengoseal.com/nitrile-rubber-o-rings-guide/

• Buna-N vs. EPDM O-Rings: https://hengoseal.com/buna-n-vs-epdm-o-rings/

• O-Ring Cost & Selection Guide: https://hengoseal.com/o-ring-cost-selection-guide/

Nitrile (Buna-N / NBR) O-Rings FAQ 

1. Are Nitrile O-Rings and Buna-N O-Rings different?
   No, Buna-N is simply another name for NBR.

2. What is the temperature range of NBR O-Rings?
   Standard NBR handles -40°C to +100°C, with special grades up to +120°C.

3. Are NBR O-Rings food-grade?
   Standard NBR is not food-safe, but FDA-compliant versions are available.

4. How do I choose between NBR and Viton® O-Rings?
   Choose NBR for cost-effective oil resistance; choose Viton® for high heat and chemical resistance.

5. Do you offer colored NBR O-Rings?
   Yes, we provide multiple standard and custom colors.

6. Can you supply NBR O-Ring kits?
   Yes, assorted kits are available for maintenance and repair needs.

7. What is the lead time?
   Stock ships within 3 days; custom orders in 10–15 days.

8. Is there a minimum order quantity?
   No, we support orders with no MOQ.

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