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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
315 X 3.5 U-70 N/A
139612
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 315.00 mm
315 X 4 U-70 N/A
139613
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 315.00 mm
315 X 4.5 U-70 N/A
139614
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.50 mm N/A 70 N/A 315.00 mm
315 X 5 U-70 N/A
139615
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 315.00 mm
315 X 6 U-70 N/A
139616
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 315.00 mm
315 X 7 U-70 N/A
139617
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 7.00 mm N/A 70 N/A 315.00 mm
316 X 3.5 U-70 N/A
139618
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 316.00 mm
316 X 4 U-70 N/A
139619
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 316.00 mm
316 X 5 U-70 N/A
139620
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 316.00 mm
316 X 9 U-70 N/A
139621
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 9.00 mm N/A 70 N/A 316.00 mm
317 X 3.5 U-70 N/A
139623
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 317.00 mm
317 X 4 U-70 N/A
139624
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 317.00 mm
317 X 5 U-70 N/A
139625
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 317.00 mm
318 X 3.5 U-70 N/A
139626
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 318.00 mm
318 X 4 U-70 N/A
139627
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 318.00 mm
318 X 5 U-70 N/A
139628
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 318.00 mm
319 X 3.5 U-70 N/A
139629
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 319.00 mm
319 X 4 U-70 N/A
139630
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 319.00 mm
319 X 5 U-70 N/A
139631
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 319.00 mm
319.2 X 3.53 U-70 N/A
139632
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.53 mm N/A 70 N/A 319.20 mm
319.3 X 5.7 U-70 N/A
139633
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.70 mm N/A 70 N/A 319.30 mm
32 * 4 U-70 N/A
139635
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 32.00 mm
32 X 1 U-70 N/A
139636
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.00 mm N/A 70 N/A 32.00 mm
32 X 1.5 U-70 N/A
139637
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.50 mm N/A 70 N/A 32.00 mm
32 X 2 U-70 N/A
139638
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 2.00 mm N/A 70 N/A 32.00 mm
Unit of Measure
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