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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
346 X 5 U-70 N/A
139815
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 346.00 mm
347 X 3.5 U-70 N/A
139816
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 347.00 mm
347 X 4 U-70 N/A
139817
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 347.00 mm
347 X 5 U-70 N/A
139818
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 347.00 mm
347 X 6 U-70 N/A
139819
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 347.00 mm
348 X 3.5 U-70 N/A
139820
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 348.00 mm
348 X 4 U-70 N/A
139821
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 348.00 mm
348 X 5 U-70 N/A
139822
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 348.00 mm
348 X 6 U-70 N/A
139823
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 348.00 mm
349 X 3.5 U-70 N/A
139824
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 349.00 mm
349 X 4 U-70 N/A
139825
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 349.00 mm
349 X 5 U-70 N/A
139826
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 349.00 mm
349.3 X 5.7 U-70 N/A
139827
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.70 mm N/A 70 N/A 349.30 mm
35 X 1.2 U-70 N/A
139828
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.20 mm N/A 70 N/A 35.00 mm
35 X 1.5 U-70 N/A
139829
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.50 mm N/A 70 N/A 35.00 mm
35 X 10 U-70 N/A
139830
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 10.00 mm N/A 70 N/A 35.00 mm
35 X 2.5 U-70 N/A
139832
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 2.50 mm N/A 70 N/A 35.00 mm
35 X 3 U-70 N/A
139833
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.00 mm N/A 70 N/A 35.00 mm
35 X 3.5 U-70 N/A
139834
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 35.00 mm
35 X 4 U-70 N/A
139835
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 35.00 mm
35 X 4.5 U-70 N/A
139836
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.50 mm N/A 70 N/A 35.00 mm
35 X 5 U-70 N/A
139837
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 35.00 mm
35 X 6 U-70 N/A
139838
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 35.00 mm
35.1 X 1.6 U-70 N/A
139839
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.60 mm N/A 70 N/A 35.10 mm
35.2 X 5.7 U-70 N/A
139841
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.70 mm N/A 70 N/A 35.20 mm
Unit of Measure
« 106 107 108 109 110 »