• Metric 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.

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Cross Section Width (mm)

Durometer

Inside Diameter (mm)

Item #

IntegrationID

Type

Material

Cross Reference

Cross Section Width

Durometer

Inside Diameter

N/A
140140 		N/A Metric Standard O-Ring N/A Polyurethane N/A P400 N/A 8.40 mm N/A 70 N/A 399.50 mm
N/A
140101 		N/A Metric Standard O-Ring N/A Polyurethane N/A P40 N/A 3.50 mm N/A 70 N/A 39.70 mm
N/A
139501 		N/A Metric Standard O-Ring N/A Polyurethane N/A P4 N/A 1.90 mm N/A 70 N/A 3.80 mm
N/A
140036 		N/A Metric Standard O-Ring N/A Polyurethane N/A P39 N/A 3.50 mm N/A 70 N/A 38.70 mm
N/A
140058 		N/A Metric Standard O-Ring N/A Polyurethane N/A P385 N/A 8.40 mm N/A 70 N/A 384.50 mm
N/A
139979 		N/A Metric Standard O-Ring N/A Polyurethane N/A P38 N/A 3.50 mm N/A 70 N/A 37.70 mm
N/A
139999 		N/A Metric Standard O-Ring N/A Polyurethane N/A P375 N/A 8.40 mm N/A 70 N/A 374.50 mm
N/A
139891 		N/A Metric Standard O-Ring N/A Polyurethane N/A P360 N/A 8.40 mm N/A 70 N/A 359.50 mm
N/A
139849 		N/A Metric Standard O-Ring N/A Polyurethane N/A P36 N/A 3.50 mm N/A 70 N/A 35.70 mm
N/A
139868 		N/A Metric Standard O-Ring N/A Polyurethane N/A P355 N/A 8.40 mm N/A 70 N/A 354.50 mm
N/A
139840 		N/A Metric Standard O-Ring N/A Polyurethane N/A P35.5 N/A 3.50 mm N/A 70 N/A 35.20 mm
N/A
139789 		N/A Metric Standard O-Ring N/A Polyurethane N/A P35 N/A 3.50 mm N/A 70 N/A 34.70 mm
N/A
139761 		N/A Metric Standard O-Ring N/A Polyurethane N/A P340 N/A 8.40 mm N/A 70 N/A 339.50 mm
N/A
139522 		N/A Metric Standard O-Ring N/A Polyurethane N/A P34 N/A 3.50 mm N/A 70 N/A 30.70 mm
N/A
139719 		N/A Metric Standard O-Ring N/A Polyurethane N/A P34 N/A 3.50 mm N/A 70 N/A 33.70 mm
N/A
139739 		N/A Metric Standard O-Ring N/A Polyurethane N/A P335 N/A 8.40 mm N/A 70 N/A 334.50 mm
N/A
139634 		N/A Metric Standard O-Ring N/A Polyurethane N/A P320 N/A 8.40 mm N/A 70 N/A 319.50 mm
N/A
139588 		N/A Metric Standard O-Ring N/A Polyurethane N/A P32 N/A 3.50 mm N/A 70 N/A 31.70 mm
N/A
139609 		N/A Metric Standard O-Ring N/A Polyurethane N/A P315 N/A 8.40 mm N/A 70 N/A 314.50 mm
N/A
139576 		N/A Metric Standard O-Ring N/A Polyurethane N/A P31.5 N/A 3.50 mm N/A 70 N/A 31.20 mm
N/A
139476 		N/A Metric Standard O-Ring N/A Polyurethane N/A P300 N/A 8.40 mm N/A 70 N/A 299.50 mm
N/A
139428 		N/A Metric Standard O-Ring N/A Polyurethane N/A P30 N/A 3.50 mm N/A 70 N/A 29.70 mm
N/A
138659 		N/A Metric Standard O-Ring N/A Polyurethane N/A P3 N/A 1.90 mm N/A 70 N/A 2.80 mm
N/A
139457 		N/A Metric Standard O-Ring N/A Polyurethane N/A P295 N/A 8.40 mm N/A 70 N/A 294.50 mm
N/A
139404 		N/A Metric Standard O-Ring N/A Polyurethane N/A P290 N/A 8.40 mm N/A 70 N/A 289.50 mm
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