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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
45 X 4 U-70 N/A
140396
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 45.00 mm
45 X 4.5 U-70 N/A
140397
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.50 mm N/A 70 N/A 45.00 mm
45 X 5 U-70 N/A
140398
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 45.00 mm
45 X 5.3 U-70 N/A
140399
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.30 mm N/A 70 N/A 45.00 mm
45 X 6 U-70 N/A
140400
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 45.00 mm
45.2 X 5.7 U-70 N/A
140401
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.70 mm N/A 70 N/A 45.20 mm
45.3 X 5.7 U-70 N/A
140402
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.70 mm N/A 70 N/A 45.30 mm
45.84 X 1.78 U-70 N/A
140407
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 1.78 mm N/A 70 N/A 45.84 mm
450 X 10 U-70 N/A
140408
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 10.00 mm N/A 70 N/A 450.00 mm
450 X 4 U-70 N/A
140409
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 450.00 mm
450 X 6 U-70 N/A
140410
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 450.00 mm
450 X 7 U-70 N/A
140411
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 7.00 mm N/A 70 N/A 450.00 mm
450 X 8 U-70 N/A
140412
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 8.00 mm N/A 70 N/A 450.00 mm
451 X 4 U-70 N/A
140413
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 451.00 mm
451 X 9 U-70 N/A
140414
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 9.00 mm N/A 70 N/A 451.00 mm
452 X 4 U-70 N/A
140415
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 452.00 mm
453 X 4 U-70 N/A
140416
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 453.00 mm
453 X 6 U-70 N/A
140417
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 453.00 mm
454 X 4 U-70 N/A
140418
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 454.00 mm
455 X 4 U-70 N/A
140419
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 455.00 mm
456 X 4 U-70 N/A
140420
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 456.00 mm
457 X 4 U-70 N/A
140424
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 457.00 mm
457.2 X 7 U-70 N/A
140425
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 7.00 mm N/A 70 N/A 457.20 mm
458 X 4 U-70 N/A
140426
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 458.00 mm
459 X 4 U-70 N/A
140427
N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 459.00 mm
Unit of Measure
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