O-Ring 4x1 NBR

Industrial Sealing O-Ring – Applications

The O-Ring 4x1 NBR 100 pcs is a precision rubber gasket designed for dependable industrial sealing in a wide variety of mechanical and fluid systems. With an inner diameter of 4 mm and a cross-section of 1 mm, this compact seal is engineered for use in small-bore applications including micro-pumps, pneumatic valves, fluid connectors, instrumentation, automotive assemblies and precision equipment. The small yet robust configuration provides effective static and low-movement dynamic sealing where tight tolerances and reliable barrier performance are critical.

Manufactured from high-quality NBR (nitrile butadiene rubber), the O-Ring offers excellent chemical resistance to oils, fuels, greases and many industrial fluids, ensuring consistent performance even in demanding environments. Its resilient elastomeric properties deliver outstanding high durability, compression set resistance and seal integrity under continuous service.

Advantages – Durable and Reliable

• Effective Industrial Sealing: Designed for static and low dynamic sealing in hydraulic, pneumatic and fluid handling systems.
• Chemical Resistance: NBR construction resists degradation from oils, fuels, lubricants and many hydrocarbon-based fluids.
• Precision Fit: Accurate dimensions (4x1 mm) ensure uniform compression and reliable sealing across assemblies.
• High Durability: Tough elastomer enhances longevity in repetitive compression cycles, reducing maintenance intervals.
• Bulk Packaging: Supplied in sets of 100 pcs, ideal for maintenance teams, OEM production runs and technical inventories.

With consistent quality and predictable performance, this O-Ring serves as a core technical sealing component in industrial operations where reliable sealing translates to reduced leakage, fewer service interruptions and improved system uptime.

Technical Data

• Product Type: O-Ring rubber seal
• Material: Nitrile Butadiene Rubber (NBR)
• Inner Diameter (ID): 4 mm
• Cross Section (CS): 1 mm
• Quantity: 100 pcs per package
• Hardness: Balanced elastomeric hardness for dependable sealing
• Ideal For: Hydraulic connectors, pneumatic valves, fluid conduits, instrumentation

FAQ – Professional Answers

1. What is an O-Ring 4x1 NBR?
An O-Ring 4x1 NBR is a small rubber seal with a 4 mm internal diameter and 1 mm cross-section made from nitrile rubber, engineered for dependable industrial sealing in fluid and mechanical systems.

2. Where is this O-Ring commonly used?
This size is frequently applied in hydraulic fittings, pneumatic valves, micro-components, instrumentation and precision assemblies where space is limited but reliable sealing is required.

3. Why is NBR material widely used for seals?
NBR offers robust chemical resistance to oils, fuels and lubricants as well as strong mechanical durability, making it a preferred material for a broad range of industrial sealing tasks.

4. Can this O-Ring be used for dynamic applications?
Yes, it is suitable for low to moderate movement dynamic sealing. For high speed motion, ensure compatibility with application parameters.

5. How should this O-Ring be stored?
Store in a cool, dry environment away from direct sunlight and extreme temperatures to preserve elastomer integrity and prolong shelf life.