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
240.89 X 3.53 U-70	N/A 139072	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 272	N/A 3.53 mm	N/A 70	N/A 240.89 mm
234.54 X 3.53 U-70	N/A 139004	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 271	N/A 3.53 mm	N/A 70	N/A 234.54 mm
228.19 X 3.53 U-70	N/A 138936	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 270	N/A 3.53 mm	N/A 70	N/A 228.19 mm
33.05 X 1.78 U-70	N/A 139710	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 27	N/A 1.78 mm	N/A 70	N/A 33.05 mm
221.84 X 3.53 U-70	N/A 138893	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 269	N/A 3.53 mm	N/A 70	N/A 221.84 mm
215.49 X 3.53 U-70	N/A 138824	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 268	N/A 3.53 mm	N/A 70	N/A 215.49 mm
209.14 X 3.53 U-70	N/A 138755	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 267	N/A 3.53 mm	N/A 70	N/A 209.14 mm
202.79 X 3.53 U-70	N/A 138708	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 266	N/A 3.53 mm	N/A 70	N/A 202.79 mm
196.44 X 3.53 U-70	N/A 138614	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 265	N/A 3.53 mm	N/A 70	N/A 196.44 mm
190.09 X 3.53 U-70	N/A 138568	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 264	N/A 3.53 mm	N/A 70	N/A 190.09 mm
183.74 X 3.53 U-70	N/A 138487	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 263	N/A 3.53 mm	N/A 70	N/A 183.74 mm
177.39 X 3.53 U-70	N/A 138416	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 262	N/A 3.53 mm	N/A 70	N/A 177.39 mm
171.04 X 3.53 U-70	N/A 138372	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 261	N/A 3.53 mm	N/A 70	N/A 171.04 mm
164.69 X 3.53 U-70	N/A 138290	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 260	N/A 3.53 mm	N/A 70	N/A 164.69 mm
31.47 X 1.78 U-70	N/A 139579	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 26	N/A 1.78 mm	N/A 70	N/A 31.47 mm
158.34 X 3.53 U-70	N/A 138214	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 259	N/A 3.53 mm	N/A 70	N/A 158.34 mm
151.99 X 3.53 U-70	N/A 138162	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 258	N/A 3.53 mm	N/A 70	N/A 151.99 mm
148.82 X 3.53 U-70	N/A 138099	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 257	N/A 3.53 mm	N/A 70	N/A 148.82 mm
142.47 X 3.53 U-70	N/A 138043	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 256	N/A 3.53 mm	N/A 70	N/A 142.47 mm
145.64 X 3.53 U-70	N/A 138075	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 256	N/A 3.53 mm	N/A 70	N/A 145.64 mm
139.29 X 3.53 U-70	N/A 137986	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 254	N/A 3.53 mm	N/A 70	N/A 139.29 mm
136.12 X 3.53 U-70	N/A 137961	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 253	N/A 3.53 mm	N/A 70	N/A 136.12 mm
132.94 X 3.53 U-70	N/A 137920	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 252	N/A 3.53 mm	N/A 70	N/A 132.94 mm
126.59 X 3.53 U-70	N/A 137830	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 251	N/A 3.53 mm	N/A 70	N/A 126.59 mm
129.77 X 3.53 U-70	N/A 137862	N/A Metric Standard O-Ring	N/A Polyurethane	N/A 251	N/A 3.53 mm	N/A 70	N/A 129.77 mm

N/A
139072

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 272

N/A 3.53 mm

N/A 70

N/A 240.89 mm

234.54 X 3.53 U-70

N/A
139004

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 271

N/A 3.53 mm

N/A 70

N/A 234.54 mm

228.19 X 3.53 U-70

N/A
138936

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 270

N/A 3.53 mm

N/A 70

N/A 228.19 mm

33.05 X 1.78 U-70

N/A
139710

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 27

N/A 1.78 mm

N/A 70

N/A 33.05 mm

221.84 X 3.53 U-70

N/A
138893

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 269

N/A 3.53 mm

N/A 70

N/A 221.84 mm

215.49 X 3.53 U-70

N/A
138824

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 268

N/A 3.53 mm

N/A 70

N/A 215.49 mm

209.14 X 3.53 U-70

N/A
138755

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 267

N/A 3.53 mm

N/A 70

N/A 209.14 mm

202.79 X 3.53 U-70

N/A
138708

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 266

N/A 3.53 mm

N/A 70

N/A 202.79 mm

196.44 X 3.53 U-70

N/A
138614

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 265

N/A 3.53 mm

N/A 70

N/A 196.44 mm

190.09 X 3.53 U-70

N/A
138568

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 264

N/A 3.53 mm

N/A 70

N/A 190.09 mm

183.74 X 3.53 U-70

N/A
138487

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 263

N/A 3.53 mm

N/A 70

N/A 183.74 mm

177.39 X 3.53 U-70

N/A
138416

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 262

N/A 3.53 mm

N/A 70

N/A 177.39 mm

171.04 X 3.53 U-70

N/A
138372

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 261

N/A 3.53 mm

N/A 70

N/A 171.04 mm

164.69 X 3.53 U-70

N/A
138290

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 260

N/A 3.53 mm

N/A 70

N/A 164.69 mm

31.47 X 1.78 U-70

N/A
139579

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 26

N/A 1.78 mm

N/A 70

N/A 31.47 mm

158.34 X 3.53 U-70

N/A
138214

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 259

N/A 3.53 mm

N/A 70

N/A 158.34 mm

151.99 X 3.53 U-70

N/A
138162

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 258

N/A 3.53 mm

N/A 70

N/A 151.99 mm

148.82 X 3.53 U-70

N/A
138099

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 257

N/A 3.53 mm

N/A 70

N/A 148.82 mm

142.47 X 3.53 U-70

N/A
138043

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 256

N/A 3.53 mm

N/A 70

N/A 142.47 mm

145.64 X 3.53 U-70

N/A
138075

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 256

N/A 3.53 mm

N/A 70

N/A 145.64 mm

139.29 X 3.53 U-70

N/A
137986

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 254

N/A 3.53 mm

N/A 70

N/A 139.29 mm

136.12 X 3.53 U-70

N/A
137961

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 253

N/A 3.53 mm

N/A 70

N/A 136.12 mm

132.94 X 3.53 U-70

N/A
137920

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 252

N/A 3.53 mm

N/A 70

N/A 132.94 mm

126.59 X 3.53 U-70

N/A
137830

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 251

N/A 3.53 mm

N/A 70

N/A 126.59 mm

129.77 X 3.53 U-70

N/A
137862

N/A Metric Standard O-Ring

N/A Polyurethane

N/A 251

N/A 3.53 mm

N/A 70

N/A 129.77 mm