O-Ring Kit
Infinite Size O-Ring
O-Rings
Medical Seals
Excavator O-Ring Repair Kits
ISO 17025 certified

ISO 17025 Accredited Lab

Nitrile 70 Durometer O-Rings NBR Oil Resistant Seals

Professional grade Nitrile 70 Durometer O-Rings (NBR) engineered for superior oil resistance and sealing performance. Our comprehensive selection includes standard sizes, custom dimensions, and specialized repair kits designed for hydraulic systems, industrial equipment, and demanding applications requiring reliable chemical resistance.

Our Range of Products
O-Ring Kit

O-Ring Kit

  • AS568, JIS B2401, Metric standards
  • Color-coded organization system
  • NBR 70 & 90 durometer options
Infinite Size O-Ring

Infinite Size O-Ring

  • Unlimited size capabilities
  • Continuous molding process
  • 70-90 Shore A hardness range
O-Rings

O-Rings

  • Premium elastomer compounds
  • 0.5mm to 1600mm size range
  • Optional surface treatments
Medical Seals

Medical Seals

  • USP Class VI certified
  • Cleanroom manufactured
  • Medical device precision
Excavator O-Ring Repair Kits

Excavator O-Ring Repair Kits

  • Excavator-specific sizing
  • Common repair sizes included
  • Quick repair solutions

Frequently Asked Questions

What is the temperature range for NBR 70 durometer O-rings?

NBR O-rings typically operate from -40°C to 120°C with excellent oil resistance properties.

Which size standards are available for NBR O-rings?

Can you provide custom NBR O-ring sizes?

What industries commonly use NBR 70 durometer O-rings?

How do I select the right durometer for my application?

Are your NBR compounds tested for quality assurance?

What surface treatments are available for NBR O-rings?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Oil & Gas

Oil & Gas

Critical sealing for drilling equipment, refineries, and pipeline systems requiring chemical resistance

Hydraulic Systems

Hydraulic Systems

Reliable sealing for cylinders, pumps, and valves in high-pressure hydraulic applications

Automotive

Automotive

Engine, transmission, and fuel system sealing applications demanding oil and fuel resistance

Agricultural Equipment

Agricultural Equipment

Durable sealing solutions for tractors, combines, and farming machinery hydraulic systems

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Buna-N 70 Durometer O-Rings AS568 Standard Seals

Buna-N 70 Durometer O-Rings AS568 Standard Seals offer reliable sealing solutions for diverse industrial applications. Our comprehensive selection includes standard AS568 sizes, infinite size options, and specialized repair kits. These nitrile rubber seals provide excellent chemical resistance and durability for general industry, automotive, hydraulic, and plumbing applications.
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Why Industrial Manufacturers Choose Detroit Sealing Components

ISO 17025 Accredited Lab Testing

Custom material development and rigorous testing ensures optimal performance for your specific application requirements.

Decades of Sealing Expertise

Skilled leadership and technical staff deliver innovative solutions backed by extensive experience in precision molded rubber.

Comprehensive Size Coverage

From micro O-rings to unlimited size options with AS568, JIS B2401, and metric standards for any application need.

Get Expert Guidance on Your NBR O-Ring Requirements

Connect with our technical team for material recommendations, sizing assistance, and custom solutions tailored to your application.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 313-887-4695 You can also send us a quick email at