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
505 X 6 U-70	N/A 140611	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 505.00 mm
508 X 6 U-70	N/A 140614	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 508.00 mm
51 X 1.5 U-70	N/A 140615	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 51.00 mm
51 X 2 U-70	N/A 140616	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 51.00 mm
51 X 2.5 U-70	N/A 140617	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 51.00 mm
51 X 3 U-70	N/A 140618	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 51.00 mm
51 X 3.5 U-70	N/A 140619	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.50 mm	N/A 70	N/A 51.00 mm
51 X 4 U-70	N/A 140620	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.00 mm	N/A 70	N/A 51.00 mm
51 X 4.5 U-70	N/A 140621	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.50 mm	N/A 70	N/A 51.00 mm
51 X 5 U-70	N/A 140622	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.00 mm	N/A 70	N/A 51.00 mm
51 X 6 U-70	N/A 140623	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 51.00 mm
51.1 X 1.6 U-70	N/A 140624	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.60 mm	N/A 70	N/A 51.10 mm
51.2 X 5.7 U-70	N/A 140625	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.70 mm	N/A 70	N/A 51.20 mm
51.5 X 3.55 U-70	N/A 140626	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.55 mm	N/A 70	N/A 51.50 mm
51.5 X 5.3 U-70	N/A 140627	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.30 mm	N/A 70	N/A 51.50 mm
51.6 X 2.4 U-70	N/A 140628	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.40 mm	N/A 70	N/A 51.60 mm
510 X 6 U-70	N/A 140630	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 510.00 mm
515 X 7 U-70	N/A 140631	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 7.00 mm	N/A 70	N/A 515.00 mm
516 X 6 U-70	N/A 140632	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 516.00 mm
518.5 X 3 U-70	N/A 140633	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 518.50 mm
519.3 X 5.7 U-70	N/A 140634	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.70 mm	N/A 70	N/A 519.30 mm
52 X 1.5 U-70	N/A 140635	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 52.00 mm
52 X 2 U-70	N/A 140636	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 52.00 mm
52 X 2.5 U-70	N/A 140637	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 52.00 mm
52 X 3 U-70	N/A 140638	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 52.00 mm

N/A
140611

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 505.00 mm

508 X 6 U-70

N/A
140614

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 508.00 mm

51 X 1.5 U-70

N/A
140615

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 51.00 mm

51 X 2 U-70

N/A
140616

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 51.00 mm

51 X 2.5 U-70

N/A
140617

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 51.00 mm

51 X 3 U-70

N/A
140618

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 51.00 mm

51 X 3.5 U-70

N/A
140619

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.50 mm

N/A 70

N/A 51.00 mm

51 X 4 U-70

N/A
140620

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.00 mm

N/A 70

N/A 51.00 mm

51 X 4.5 U-70

N/A
140621

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.50 mm

N/A 70

N/A 51.00 mm

51 X 5 U-70

N/A
140622

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.00 mm

N/A 70

N/A 51.00 mm

51 X 6 U-70

N/A
140623

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 51.00 mm

51.1 X 1.6 U-70

N/A
140624

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.60 mm

N/A 70

N/A 51.10 mm

51.2 X 5.7 U-70

N/A
140625

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.70 mm

N/A 70

N/A 51.20 mm

51.5 X 3.55 U-70

N/A
140626

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.55 mm

N/A 70

N/A 51.50 mm

51.5 X 5.3 U-70

N/A
140627

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.30 mm

N/A 70

N/A 51.50 mm

51.6 X 2.4 U-70

N/A
140628

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.40 mm

N/A 70

N/A 51.60 mm

510 X 6 U-70

N/A
140630

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 510.00 mm

515 X 7 U-70

N/A
140631

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 7.00 mm

N/A 70

N/A 515.00 mm

516 X 6 U-70

N/A
140632

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 516.00 mm

518.5 X 3 U-70

N/A
140633

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 518.50 mm

519.3 X 5.7 U-70

N/A
140634

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.70 mm

N/A 70

N/A 519.30 mm

52 X 1.5 U-70

N/A
140635

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 52.00 mm

52 X 2 U-70

N/A
140636

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 52.00 mm

52 X 2.5 U-70

N/A
140637

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 52.00 mm

52 X 3 U-70

N/A
140638

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 52.00 mm