Metric Polyurethane O-Rings

OneMonroe’s Metric Polyurethane O-Rings are designed for maximum durability and exceptional sealing performance in a wide range of applications. Crafted from high-quality polyurethane, these O-rings offer outstanding resistance to abrasion, chemicals, and high-pressure environments, making them ideal for industries that demand both reliability and longevity. Whether used in hydraulics, pneumatics, or mechanical assemblies, OneMonroe’s Metric Polyurethane O-Rings deliver dependable sealing solutions that withstand tough conditions, ensuring your systems operate smoothly and efficiently.

Our metric O-rings are available in various sizes to provide versatility and precision for any engineering or industrial requirement. These O-rings are specifically designed to provide a reliable seal for metric-based equipment, allowing for exact fitment and minimal leakage. The superior strength and elasticity of polyurethane make these O-rings more durable than traditional rubber alternatives, significantly extending the service life and reducing maintenance downtime. With their exceptional chemical and temperature resistance, OneMonroe Metric Polyurethane O-Rings are a trusted choice for applications ranging from automotive systems to heavy machinery and beyond.

OneMonroe is committed to providing premium-quality products that meet the rigorous demands of our clients. Our polyurethane O-rings undergo stringent quality checks and are manufactured to exact specifications, ensuring reliable performance in diverse environments. As a trusted provider of industrial and engineering components, we support our clients with expert guidance and a wide selection of high-quality sealing solutions. When you choose OneMonroe Metric Polyurethane O-Rings, you’re investing in dependable performance, longevity, and efficiency for all your sealing needs.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

Item #	IntegrationID	Type	Material	Cross Reference	Cross Section Width	Durometer	Inside Diameter
18 X 2.2 U-70	N/A 138434	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.20 mm	N/A 70	N/A 18.00 mm
18 X 2.5 U-70	N/A 138435	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 18.00 mm
18 X 2.65 U-70	N/A 138436	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.65 mm	N/A 70	N/A 18.00 mm
18 X 3 U-70	N/A 138437	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 18.00 mm
18 X 3.5 U-70	N/A 138438	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.50 mm	N/A 70	N/A 18.00 mm
18 X 3.55 U-70	N/A 138439	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.55 mm	N/A 70	N/A 18.00 mm
18 X 4 U-70	N/A 138440	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.00 mm	N/A 70	N/A 18.00 mm
18 X 4.5 U-70	N/A 138441	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.50 mm	N/A 70	N/A 18.00 mm
18 X 5 U-70	N/A 138442	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.00 mm	N/A 70	N/A 18.00 mm
18 X 6 U-70	N/A 138443	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 18.00 mm
18.1 X 1.6 U-70	N/A 138444	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.60 mm	N/A 70	N/A 18.10 mm
18.2 X 3 U-70	N/A 138445	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 18.20 mm
18.3 X 2.4 U-70	N/A 138446	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.40 mm	N/A 70	N/A 18.30 mm
18.3 X 3.6 U-70	N/A 138447	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.60 mm	N/A 70	N/A 18.30 mm
18.4 X 2.7 U-70	N/A 138448	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.70 mm	N/A 70	N/A 18.40 mm
18.5 X 1 U-70	N/A 138450	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.00 mm	N/A 70	N/A 18.50 mm
18.5 X 1.5 U-70	N/A 138451	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 18.50 mm
18.5 X 2 U-70	N/A 138452	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 18.50 mm
18.5 X 2.5 U-70	N/A 138453	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 18.50 mm
18.5 X 3 U-70	N/A 138454	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 18.50 mm
18.6 X 2.4 U-70	N/A 138455	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.40 mm	N/A 70	N/A 18.60 mm
18.6 X 2.7 U-70	N/A 138456	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.70 mm	N/A 70	N/A 18.60 mm
180 X 2 U-70	N/A 138460	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 180.00 mm
180 X 3 U-70	N/A 138461	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 180.00 mm
180 X 3.5 U-70	N/A 138462	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.50 mm	N/A 70	N/A 180.00 mm

N/A
138434

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.20 mm

N/A 70

N/A 18.00 mm

18 X 2.5 U-70

N/A
138435

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 18.00 mm

18 X 2.65 U-70

N/A
138436

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.65 mm

N/A 70

N/A 18.00 mm

18 X 3 U-70

N/A
138437

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 18.00 mm

18 X 3.5 U-70

N/A
138438

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.50 mm

N/A 70

N/A 18.00 mm

18 X 3.55 U-70

N/A
138439

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.55 mm

N/A 70

N/A 18.00 mm

18 X 4 U-70

N/A
138440

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.00 mm

N/A 70

N/A 18.00 mm

18 X 4.5 U-70

N/A
138441

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.50 mm

N/A 70

N/A 18.00 mm

18 X 5 U-70

N/A
138442

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.00 mm

N/A 70

N/A 18.00 mm

18 X 6 U-70

N/A
138443

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 18.00 mm

18.1 X 1.6 U-70

N/A
138444

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.60 mm

N/A 70

N/A 18.10 mm

18.2 X 3 U-70

N/A
138445

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 18.20 mm

18.3 X 2.4 U-70

N/A
138446

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.40 mm

N/A 70

N/A 18.30 mm

18.3 X 3.6 U-70

N/A
138447

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.60 mm

N/A 70

N/A 18.30 mm

18.4 X 2.7 U-70

N/A
138448

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.70 mm

N/A 70

N/A 18.40 mm

18.5 X 1 U-70

N/A
138450

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.00 mm

N/A 70

N/A 18.50 mm

18.5 X 1.5 U-70

N/A
138451

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 18.50 mm

18.5 X 2 U-70

N/A
138452

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 18.50 mm

18.5 X 2.5 U-70

N/A
138453

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 18.50 mm

18.5 X 3 U-70

N/A
138454

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 18.50 mm

18.6 X 2.4 U-70

N/A
138455

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.40 mm

N/A 70

N/A 18.60 mm

18.6 X 2.7 U-70

N/A
138456

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.70 mm

N/A 70

N/A 18.60 mm

180 X 2 U-70

N/A
138460

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 180.00 mm

180 X 3 U-70

N/A
138461

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 180.00 mm

180 X 3.5 U-70

N/A
138462

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.50 mm

N/A 70

N/A 180.00 mm