NBR O-Ring 94x4.5 mm

NBR O-Ring 94x4.5 mm - Oil-Resistant Rubber Seal, 70 ShA Hardness

The NBR O-Ring 94x4.5 mm (70 ShA) is a premium-grade rubber sealing element engineered for demanding hydraulic, pneumatic, and industrial systems. Made from Nitrile Butadiene Rubber (NBR), this o-ring ensures reliable sealing performance against oils, greases, hydraulic fluids, fuels, and water-based solutions.

With a 94 mm inner diameter and a 4.5 mm cross-section, this o-ring conforms to DIN 3771 / ISO 3601 standards, offering excellent dimensional stability and long-lasting elasticity. Its 70 Shore A hardness strikes the ideal balance between flexibility and pressure resistance — suitable for static and dynamic applications.

The nitrile compound is highly regarded for its cost-effectiveness and outstanding resistance to petroleum-based fluids, making this o-ring a popular choice in automotive, manufacturing, machinery, and MRO applications worldwide.

Key Advantages:

• Excellent resistance to mineral oils, diesel, lubricants, and hydraulic fluids

• Wide operating temperature range: -30 °C to +100 °C

• Good mechanical properties and wear resistance

• Compatible with static and light dynamic sealing conditions

• Industry-standard sizing: DIN 3771 / ISO 3601

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FAQ

Q1: What is this o-ring made of?
This o-ring is made of Nitrile Butadiene Rubber (NBR), known for its oil, fuel, and grease resistance.

Q2: What applications is it suitable for?
It’s ideal for sealing components in hydraulic cylinders, compressors, valves, engines, gearboxes, and pneumatic equipment.

Q3: Is this o-ring reusable?
For static applications, it may be reused if not deformed, but we recommend replacing o-rings in critical systems for maximum reliability.

Q4: What is the operating temperature range?
Typically from -30 °C to +100 °C, depending on the medium.

Q5: Does it comply with international standards?
Yes, it follows DIN 3771 and ISO 3601 sizing and quality standards.