Metric Polyurethane 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.

Item #	IntegrationID	Type	Material	Cross Reference	Cross Section Width	Durometer	Inside Diameter
37 X 1.5 U-70	N/A 139954	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 37.00 mm
37 X 2 U-70	N/A 139955	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 37.00 mm
37 X 2.5 U-70	N/A 139956	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 37.00 mm
37 X 3 U-70	N/A 139957	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 37.00 mm
37 X 3.5 U-70	N/A 139958	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.50 mm	N/A 70	N/A 37.00 mm
37 X 4 U-70	N/A 139959	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.00 mm	N/A 70	N/A 37.00 mm
37 X 4.5 U-70	N/A 139960	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.50 mm	N/A 70	N/A 37.00 mm
37 X 5 U-70	N/A 139961	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.00 mm	N/A 70	N/A 37.00 mm
37 X 6 U-70	N/A 139962	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 37.00 mm
37.1 X 1.6 U-70	N/A 139963	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.60 mm	N/A 70	N/A 37.10 mm
37.2 X 3 U-70	N/A 139964	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 37.20 mm
37.2 X 5.7 U-70	N/A 139965	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.70 mm	N/A 70	N/A 37.20 mm
37.3 X 3.6 U-70	N/A 139966	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.60 mm	N/A 70	N/A 37.30 mm
37.5 X 1.5 U-70	N/A 139970	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 37.50 mm
37.5 X 2.5 U-70	N/A 139972	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 37.50 mm
37.5 X 2.65 U-70	N/A 139973	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.65 mm	N/A 70	N/A 37.50 mm
37.5 X 3 U-70	N/A 139974	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 37.50 mm
37.5 X 3.55 U-70	N/A 139975	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.55 mm	N/A 70	N/A 37.50 mm
37.5 X 4.5 U-70	N/A 139976	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.50 mm	N/A 70	N/A 37.50 mm
37.6 X 2.4 U-70	N/A 139977	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.40 mm	N/A 70	N/A 37.60 mm
370 X 1.9 U-70	N/A 139982	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.90 mm	N/A 70	N/A 370.00 mm
370 X 3.5 U-70	N/A 139983	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.50 mm	N/A 70	N/A 370.00 mm
370 X 4 U-70	N/A 139984	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.00 mm	N/A 70	N/A 370.00 mm
370 X 5 U-70	N/A 139985	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.00 mm	N/A 70	N/A 370.00 mm
370 X 6 U-70	N/A 139986	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 370.00 mm

N/A
139954

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 37.00 mm

37 X 2 U-70

N/A
139955

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 37.00 mm

37 X 2.5 U-70

N/A
139956

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 37.00 mm

37 X 3 U-70

N/A
139957

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 37.00 mm

37 X 3.5 U-70

N/A
139958

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.50 mm

N/A 70

N/A 37.00 mm

37 X 4 U-70

N/A
139959

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.00 mm

N/A 70

N/A 37.00 mm

37 X 4.5 U-70

N/A
139960

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.50 mm

N/A 70

N/A 37.00 mm

37 X 5 U-70

N/A
139961

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.00 mm

N/A 70

N/A 37.00 mm

37 X 6 U-70

N/A
139962

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 37.00 mm

37.1 X 1.6 U-70

N/A
139963

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.60 mm

N/A 70

N/A 37.10 mm

37.2 X 3 U-70

N/A
139964

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 37.20 mm

37.2 X 5.7 U-70

N/A
139965

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.70 mm

N/A 70

N/A 37.20 mm

37.3 X 3.6 U-70

N/A
139966

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.60 mm

N/A 70

N/A 37.30 mm

37.5 X 1.5 U-70

N/A
139970

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 37.50 mm

37.5 X 2.5 U-70

N/A
139972

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 37.50 mm

37.5 X 2.65 U-70

N/A
139973

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.65 mm

N/A 70

N/A 37.50 mm

37.5 X 3 U-70

N/A
139974

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 37.50 mm

37.5 X 3.55 U-70

N/A
139975

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.55 mm

N/A 70

N/A 37.50 mm

37.5 X 4.5 U-70

N/A
139976

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.50 mm

N/A 70

N/A 37.50 mm

37.6 X 2.4 U-70

N/A
139977

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.40 mm

N/A 70

N/A 37.60 mm

370 X 1.9 U-70

N/A
139982

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.90 mm

N/A 70

N/A 370.00 mm

370 X 3.5 U-70

N/A
139983

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.50 mm

N/A 70

N/A 370.00 mm

370 X 4 U-70

N/A
139984

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.00 mm

N/A 70

N/A 370.00 mm

370 X 5 U-70

N/A
139985

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.00 mm

N/A 70

N/A 370.00 mm

370 X 6 U-70

N/A
139986

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 370.00 mm