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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.

Metric O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Reference

Cross Section Width

Durometer

Inside Diameter

Quantity
494 X 4 U-70 N/A
140550
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 494.00 mm
494.67 X 7 U-70 N/A
140552
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 7.00 mm N/A 70 N/A 494.67 mm
495 X 4 U-70 N/A
140553
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 495.00 mm
496 X 4 U-70 N/A
140554
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 496.00 mm
497 X 4 U-70 N/A
140555
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 497.00 mm
498 X 4 U-70 N/A
140556
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 498.00 mm
499 X 4 U-70 N/A
140557
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 499.00 mm
499.3 X 5.7 U-70 N/A
140558
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.70 mm N/A 70 N/A 499.30 mm
5 X 1 U-70 N/A
140559
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.00 mm N/A 70 N/A 5.00 mm
5 X 1.2 U-70 N/A
140560
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.20 mm N/A 70 N/A 5.00 mm
5 X 1.5 U-70 N/A
140561
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.50 mm N/A 70 N/A 5.00 mm
5 X 1.6 U-70 N/A
140562
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.60 mm N/A 70 N/A 5.00 mm
5 X 1.8 U-70 N/A
140563
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.80 mm N/A 70 N/A 5.00 mm
5 X 2 U-70 N/A
140564
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 2.00 mm N/A 70 N/A 5.00 mm
5 X 2.5 U-70 N/A
140565
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 2.50 mm N/A 70 N/A 5.00 mm
5 X 3 U-70 N/A
140566
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.00 mm N/A 70 N/A 5.00 mm
5 X 3.5 U-70 N/A
140567
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 5.00 mm
5 X 4 U-70 N/A
140568
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 5.00 mm
5 X 5 U-70 N/A
140569
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 5.00 mm
5.1 X 1.6 U-70 N/A
140570
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.60 mm N/A 70 N/A 5.10 mm
5.15 X 1.8 U-70 N/A
140571
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.80 mm N/A 70 N/A 5.15 mm
5.3 X 1.8 U-70 N/A
140574
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.80 mm N/A 70 N/A 5.30 mm
5.3 X 2.4 U-70 N/A
140575
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 2.40 mm N/A 70 N/A 5.30 mm
5.36 X 0.81 U-70 N/A
140576
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 0.81 mm N/A 70 N/A 5.36 mm
5.5 X 1 U-70 N/A
140577
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.00 mm N/A 70 N/A 5.50 mm
Unit of Measure
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