O-Ring 100x5.3 NBR

Applications

The O-Ring 100x5.3 mm NBR 70 ShA is a precision-engineered rubber seal used in a wide range of industrial, hydraulic and pneumatic systems.
Made from nitrile butadiene rubber (NBR) with 70 ShA hardness, it provides reliable sealing performance against oils, greases and industrial fluids.
Its 100 mm inner diameter and 5.3 mm cross-section fit standard metric grooves, making it ideal for maintenance, repairs, and production equipment.
Available per piece - suitable for individual use, small-scale replacements, or bulk industrial orders.

Advantages

• High resistance to oils and greases - NBR 70 ShA provides long-term durability in contact with mineral oils, hydraulic fluids and lubricants.

• Universal industrial application - ideal for hydraulic cylinders, pumps, compressors, valves and pneumatic systems.

• Accurate sealing geometry - ensures leak-proof sealing in both static and low-motion dynamic assemblies.

• Cost-effective replacement - sold individually for flexibility, but also available in larger quantities for B2B supply chains.

• Proven material - NBR 70 ShA combines elasticity, wear resistance and chemical stability.

Technical Data

• Type: O-Ring / Rubber Sealing Ring

• Material: NBR (Nitrile Butadiene Rubber)

• Hardness: 70 Shore A

• Inner Diameter: 100 mm

• Cross-Section: 5.3 mm

• Color: Black

• Temperature Range: approx. −30 °C to +100 °C

• Resistance: Oils, greases, hydraulic fluids, moderate fuels

• Applications: Hydraulic systems, pneumatics, machine sealing, industrial maintenance

FAQ

Q1: What does NBR 70 ShA mean?
It refers to nitrile butadiene rubber with a hardness of 70 Shore A - a standard compound for oil-resistant O-Rings used in industrial systems.

Q2: Is this O-Ring sold individually or in sets?
Each O-Ring 100x5.3 mm is sold per piece, allowing you to order the exact quantity needed for your application.

Q3: Where is this O-Ring commonly used?
It’s suitable for hydraulic and pneumatic systems, machine housings, valves, gearboxes, and industrial pumps.

Q4: Can this O-Ring be used with oils and lubricants?
Yes, the NBR compound ensures strong resistance to oils, greases and most hydrocarbon-based fluids.

Q5: What temperature range can it handle?
The NBR 70 ShA material performs well from approximately −30 °C to +100 °C, depending on pressure and fluid type.