30Pcs NBR O-Ring Seals CS1.5mm OD11-20mm Oil-Resistant Nitrile

30-Pack Black NBR Nitrile Rubber O-Ring Seals — CS1.5mm | OD 11–20mm

Keep your machinery, plumbing, and hydraulic systems leak-free with these premium Black NBR (Nitrile Butadiene Rubber) O-Ring Seals. Each pack contains 30 pieces of standard-sized gasket washers with a cross-section of 1.5mm and outer diameters ranging from 11mm to 20mm — making them a versatile addition to any toolbox, workshop, or maintenance kit.

Made in Mainland China.

Key Features

• Wide Temperature Range: Rated for continuous use from -40°C to +120°C (-40°F to 248°F), suitable for both cold and high-heat environments.
• Oil Resistant: NBR material provides excellent resistance to petroleum-based oils, fuels, and hydraulic fluids — helping prevent leaks and seepage.
• Wear Resistant: Durable nitrile rubber construction holds up under repeated compression and friction, maintaining a reliable seal over time.
• Standard Sizing: Cross-section (CS) 1.5mm with OD range of 11mm–20mm makes these compatible with a wide variety of fittings and connectors.
• Versatile Applications: Ideal for machinery, plumbing systems, automotive engines, hydraulic fittings, pneumatic systems, pumps, valves, and more.
• Great Value: 30 pieces per lot at an accessible price point — perfect for maintenance professionals and DIY enthusiasts alike.

Specifications

Common Applications

• Plumbing pipe fittings and connectors
• Automotive engine and fuel system seals
• Hydraulic and pneumatic cylinders
• Industrial machinery and equipment
• Pumps, valves, and compressors
• General maintenance and repair projects

Shopping Tip: Need multiple sizes? Add all the sizes you need to your cart first, then place a single order to take advantage of combined shipping savings.

Note: Due to variations in monitor display settings and lighting, the actual color of the product may appear slightly different from the images shown.

You May Also Like

• 10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals
• 10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips
• 12pcs 16mm Momentary Push Button Switch 1NO Metal 2-Pin Self-Reset

Learn more: OSHA on personal protective equipment

Frequently Asked Questions

Q: What is NBR and why is it used for O-ring seals?

A: NBR stands for Nitrile Butadiene Rubber, a synthetic rubber known for its excellent resistance to petroleum-based oils, fuels, and hydraulic fluids. It is one of the most widely used materials for O-ring seals in machinery, plumbing, and automotive applications due to its durability, wear resistance, and broad operating temperature range (-40°C to +120°C).

Q: What sizes are included in this 30-piece lot?

A: This lot covers O-rings with a cross-section (CS) of 1.5mm and outer diameters (OD) ranging from 11mm to 20mm. The exact size breakdown per lot depends on the specific variant selected — please check the product options or contact us if you need a particular OD size confirmed before ordering.

Q: Can these NBR O-rings be used in high-temperature environments?

A: Yes. These nitrile rubber O-ring seals are rated for continuous use between -40°C and +120°C (-40°F to 248°F), making them suitable for a variety of high-heat applications including automotive engines, hydraulic systems, and industrial machinery.

Q: Are these O-rings compatible with water and steam applications?

A: NBR O-rings perform well in oil, fuel, and many water-based fluids. However, for high-pressure steam applications, a different rubber compound such as EPDM or silicone may be more appropriate. These seals are best suited for oil, fuel, and general fluid sealing tasks.

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.