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
54 X 2 U-70	N/A 140678	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 54.00 mm
54 X 2.5 U-70	N/A 140679	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 54.00 mm
54 X 3 U-70	N/A 140680	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 54.00 mm
54 X 3.5 U-70	N/A 140681	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.50 mm	N/A 70	N/A 54.00 mm
54 X 4 U-70	N/A 140682	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.00 mm	N/A 70	N/A 54.00 mm
54 X 5 U-70	N/A 140683	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.00 mm	N/A 70	N/A 54.00 mm
54 X 6 U-70	N/A 140684	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 54.00 mm
54 X 7 U-70	N/A 140685	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 7.00 mm	N/A 70	N/A 54.00 mm
54.2 X 3 U-70	N/A 140686	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 54.20 mm
54.2 X 5.7 U-70	N/A 140687	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.70 mm	N/A 70	N/A 54.20 mm
54.3 X 5.7 U-70	N/A 140688	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.70 mm	N/A 70	N/A 54.30 mm
54.4 X 5.3 U-70	N/A 140690	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.30 mm	N/A 70	N/A 54.40 mm
54.5 X 3 U-70	N/A 140692	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 54.50 mm
54.5 X 3.55 U-70	N/A 140693	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.55 mm	N/A 70	N/A 54.50 mm
54.5 X 5.3 U-70	N/A 140695	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.30 mm	N/A 70	N/A 54.50 mm
54.6 X 2.4 U-70	N/A 140696	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.40 mm	N/A 70	N/A 54.60 mm
540 X 6 U-70	N/A 140698	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 540.00 mm
544 X 6 U-70	N/A 140699	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 544.00 mm
545 X 7 U-70	N/A 140700	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 7.00 mm	N/A 70	N/A 545.00 mm
545 X 9 U-70	N/A 140701	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 9.00 mm	N/A 70	N/A 545.00 mm
545.47 X 7 U-70	N/A 140702	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 7.00 mm	N/A 70	N/A 545.47 mm
549 X 6 U-70	N/A 140703	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 549.00 mm
55 X 1.5 U-70	N/A 140704	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 55.00 mm
55 X 2 U-70	N/A 140705	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 55.00 mm
55 X 2.5 U-70	N/A 140706	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 55.00 mm

N/A
140678

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 54.00 mm

54 X 2.5 U-70

N/A
140679

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 54.00 mm

54 X 3 U-70

N/A
140680

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 54.00 mm

54 X 3.5 U-70

N/A
140681

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.50 mm

N/A 70

N/A 54.00 mm

54 X 4 U-70

N/A
140682

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.00 mm

N/A 70

N/A 54.00 mm

54 X 5 U-70

N/A
140683

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.00 mm

N/A 70

N/A 54.00 mm

54 X 6 U-70

N/A
140684

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 54.00 mm

54 X 7 U-70

N/A
140685

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 7.00 mm

N/A 70

N/A 54.00 mm

54.2 X 3 U-70

N/A
140686

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 54.20 mm

54.2 X 5.7 U-70

N/A
140687

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.70 mm

N/A 70

N/A 54.20 mm

54.3 X 5.7 U-70

N/A
140688

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.70 mm

N/A 70

N/A 54.30 mm

54.4 X 5.3 U-70

N/A
140690

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.30 mm

N/A 70

N/A 54.40 mm

54.5 X 3 U-70

N/A
140692

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 54.50 mm

54.5 X 3.55 U-70

N/A
140693

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.55 mm

N/A 70

N/A 54.50 mm

54.5 X 5.3 U-70

N/A
140695

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.30 mm

N/A 70

N/A 54.50 mm

54.6 X 2.4 U-70

N/A
140696

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.40 mm

N/A 70

N/A 54.60 mm

540 X 6 U-70

N/A
140698

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 540.00 mm

544 X 6 U-70

N/A
140699

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 544.00 mm

545 X 7 U-70

N/A
140700

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 7.00 mm

N/A 70

N/A 545.00 mm

545 X 9 U-70

N/A
140701

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 9.00 mm

N/A 70

N/A 545.00 mm

545.47 X 7 U-70

N/A
140702

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 7.00 mm

N/A 70

N/A 545.47 mm

549 X 6 U-70

N/A
140703

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 549.00 mm

55 X 1.5 U-70

N/A
140704

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 55.00 mm

55 X 2 U-70

N/A
140705

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 55.00 mm

55 X 2.5 U-70

N/A
140706

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 55.00 mm