Black NBR Nitrile O-Rings CS1.5mm – Temperature & Wear Resistant

Black NBR Nitrile Rubber O-Rings — CS 1.5mm Seals & Gaskets

Keep your plumbing, hydraulic, pneumatic, and mechanical systems leak-free with these precision-engineered Black NBR Nitrile Rubber O-Rings. With a cross-section (CS) of 1.5mm, these standard-spec ring gaskets deliver a reliable, airtight seal across a wide range of applications — from household fixtures to industrial equipment.

Why Choose NBR Nitrile O-Rings?

• Temperature Resistant: NBR (Nitrile Butadiene Rubber) handles a broad operating temperature range, making it suitable for both hot and cold environments.
• Wear-Resistant: Hard-wearing rubber construction stands up to repeated compression and cycling without deforming.
• Oil & Fuel Resistant: Excellent resistance to petroleum-based oils, fuels, and hydraulic fluids — ideal for automotive and mechanical uses.
• Standard Specification: CS 1.5mm cross-section ensures compatibility with standard O-ring groove dimensions.
• Versatile Application: Suitable for sealing in pumps, valves, cylinders, fittings, connectors, and more.
• Easy to Install: Flexible, pliable rubber fits snugly into grooves for a hassle-free, tool-free installation.

Product Specifications

Common Applications

• Plumbing fixtures and pipe fittings
• Hydraulic and pneumatic systems
• Automotive engine and fuel systems
• Industrial machinery and equipment
• Water pumps and valves
• Air compressors and connectors

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Frequently Asked Questions

Q: What does CS 1.5mm mean for NBR nitrile rubber O-rings?

A: "CS" stands for Cross-Section — the diameter of the O-ring's circular profile when cut in a cross-section view. A CS of 1.5mm means the rubber cord is 1.5mm thick. This dimension is critical for selecting the correct O-ring to fit your groove and ensure a proper, leak-free seal.

Q: What fluids and environments are these NBR O-rings resistant to?

A: NBR (Nitrile Butadiene Rubber) O-rings offer excellent resistance to petroleum-based oils, fuels, hydraulic fluids, water, and many common industrial chemicals. They perform well across a wide temperature range, making them a versatile choice for automotive, plumbing, and industrial sealing applications.

Q: How do I install these nitrile rubber O-rings correctly?

A: Clean the groove and mating surface before installation. Lightly lubricate the O-ring with a compatible lubricant (such as silicone grease or petroleum jelly) and carefully seat it into the groove without twisting or stretching it excessively. Ensure it sits flat and even for the best seal performance.

Q: Are these O-rings suitable for use in high-pressure systems?

A: These standard CS 1.5mm NBR O-rings are designed for use in a wide range of sealing applications. For high-pressure systems, always verify that the O-ring size, material, and hardness (durometer) are appropriate for your specific pressure and temperature requirements before installation.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.