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
76 X 4 U-70	N/A 141142	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.00 mm	N/A 70	N/A 76.00 mm
76 X 4.5 U-70	N/A 141143	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.50 mm	N/A 70	N/A 76.00 mm
76 X 5 U-70	N/A 141144	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.00 mm	N/A 70	N/A 76.00 mm
76 X 6 U-70	N/A 141145	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 76.00 mm
760 X 7 U-70	N/A 141146	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 7.00 mm	N/A 70	N/A 760.00 mm
77 X 1.5 U-70	N/A 141147	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 77.00 mm
77 X 2 U-70	N/A 141148	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 77.00 mm
77 X 2.5 U-70	N/A 141149	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 77.00 mm
77 X 3 U-70	N/A 141150	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 77.00 mm
77 X 3.5 U-70	N/A 141151	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.50 mm	N/A 70	N/A 77.00 mm
77 X 4 U-70	N/A 141152	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.00 mm	N/A 70	N/A 77.00 mm
77 X 5 U-70	N/A 141153	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.00 mm	N/A 70	N/A 77.00 mm
77.2 X 5.7 U-70	N/A 141154	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.70 mm	N/A 70	N/A 77.20 mm
77.5 X 3.55 U-70	N/A 141157	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.55 mm	N/A 70	N/A 77.50 mm
77.5 X 5.3 U-70	N/A 141158	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.30 mm	N/A 70	N/A 77.50 mm
78 X 1.5 U-70	N/A 141159	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 78.00 mm
78 X 2 U-70	N/A 141160	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.00 mm	N/A 70	N/A 78.00 mm
78 X 2.5 U-70	N/A 141161	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 2.50 mm	N/A 70	N/A 78.00 mm
78 X 3 U-70	N/A 141162	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.00 mm	N/A 70	N/A 78.00 mm
78 X 3.5 U-70	N/A 141163	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 3.50 mm	N/A 70	N/A 78.00 mm
78 X 4 U-70	N/A 141164	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 4.00 mm	N/A 70	N/A 78.00 mm
78 X 5 U-70	N/A 141165	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 5.00 mm	N/A 70	N/A 78.00 mm
78 X 6 U-70	N/A 141166	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 78.00 mm
78.5 X 6 U-70	N/A 141167	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 6.00 mm	N/A 70	N/A 78.50 mm
79 X 1.5 U-70	N/A 141172	N/A Metric Standard O-Ring	N/A Polyurethane	N/A	N/A 1.50 mm	N/A 70	N/A 79.00 mm

N/A
141142

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.00 mm

N/A 70

N/A 76.00 mm

76 X 4.5 U-70

N/A
141143

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.50 mm

N/A 70

N/A 76.00 mm

76 X 5 U-70

N/A
141144

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.00 mm

N/A 70

N/A 76.00 mm

76 X 6 U-70

N/A
141145

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 76.00 mm

760 X 7 U-70

N/A
141146

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 7.00 mm

N/A 70

N/A 760.00 mm

77 X 1.5 U-70

N/A
141147

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 77.00 mm

77 X 2 U-70

N/A
141148

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 77.00 mm

77 X 2.5 U-70

N/A
141149

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 77.00 mm

77 X 3 U-70

N/A
141150

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 77.00 mm

77 X 3.5 U-70

N/A
141151

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.50 mm

N/A 70

N/A 77.00 mm

77 X 4 U-70

N/A
141152

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.00 mm

N/A 70

N/A 77.00 mm

77 X 5 U-70

N/A
141153

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.00 mm

N/A 70

N/A 77.00 mm

77.2 X 5.7 U-70

N/A
141154

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.70 mm

N/A 70

N/A 77.20 mm

77.5 X 3.55 U-70

N/A
141157

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.55 mm

N/A 70

N/A 77.50 mm

77.5 X 5.3 U-70

N/A
141158

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.30 mm

N/A 70

N/A 77.50 mm

78 X 1.5 U-70

N/A
141159

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 78.00 mm

78 X 2 U-70

N/A
141160

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.00 mm

N/A 70

N/A 78.00 mm

78 X 2.5 U-70

N/A
141161

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 2.50 mm

N/A 70

N/A 78.00 mm

78 X 3 U-70

N/A
141162

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.00 mm

N/A 70

N/A 78.00 mm

78 X 3.5 U-70

N/A
141163

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 3.50 mm

N/A 70

N/A 78.00 mm

78 X 4 U-70

N/A
141164

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 4.00 mm

N/A 70

N/A 78.00 mm

78 X 5 U-70

N/A
141165

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 5.00 mm

N/A 70

N/A 78.00 mm

78 X 6 U-70

N/A
141166

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 78.00 mm

78.5 X 6 U-70

N/A
141167

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 6.00 mm

N/A 70

N/A 78.50 mm

79 X 1.5 U-70

N/A
141172

N/A Metric Standard O-Ring

N/A Polyurethane

N/A

N/A 1.50 mm

N/A 70

N/A 79.00 mm