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OneMonroe Metric Silicone O-Rings provide an exceptional sealing solution for various industrial, commercial, and residential applications. These O-rings are engineered to withstand high temperatures and extreme environments, making them ideal for use in applications where reliability and durability are essential. Made from premium silicone, they offer superior flexibility, ensuring a tight seal even under fluctuating pressure or temperature conditions. The metric sizing further enhances their suitability for precision applications, providing a snug fit that prevents leaks and protects sensitive components from contaminants.

Our metric silicone O-rings are trusted in industries such as automotive, aerospace, medical, and manufacturing due to their excellent resistance to temperature variations, weathering, and chemical exposure. The silicone material used in OneMonroe O-rings not only maintains its elasticity over time but also performs exceptionally well in both high- and low-temperature settings. With this durability, OneMonroe Metric Silicone O-Rings are ideal for applications involving extreme temperatures, whether in engine systems, HVAC units, or electronic devices, making them a reliable choice for both routine and specialized uses.

At OneMonroe, we prioritize quality and customer satisfaction by delivering O-rings that meet stringent manufacturing standards. Our metric silicone O-rings undergo rigorous quality checks, ensuring each product maintains consistent dimensional accuracy and performance. Available in various sizes, these O-rings are designed to meet the exact specifications of your project requirements. Whether you need a bulk supply for industrial production or just a few for small-scale applications, OneMonroe Metric Silicone O-Rings are the dependable choice for any application that demands precision, resilience, and reliable sealing.

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

Product Guides

Quantity
242 X 3 S-70 N/A
134740
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 242.00 mm N/A Seal Guides
243 X 3 S-70 N/A
134741
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 243.00 mm N/A Seal Guides
244 X 3 S-70 N/A
134742
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 244.00 mm N/A Seal Guides
245 X 3 S-70 N/A
134743
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 245.00 mm N/A Seal Guides
246 X 3 S-70 N/A
134744
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 246.00 mm N/A Seal Guides
247 X 3 S-70 N/A
134745
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 247.00 mm N/A Seal Guides
248 X 3 S-70 N/A
134746
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 248.00 mm N/A Seal Guides
249 X 3 S-70 N/A
134747
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 249.00 mm N/A Seal Guides
249.5 X 3 S-70 N/A
134748
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 249.50 mm N/A Seal Guides
250 X 3 S-70 N/A
134749
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 250.00 mm N/A Seal Guides
255 X 3 S-70 N/A
134750
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 255.00 mm N/A Seal Guides
259.3 X 3 S-70 N/A
134751
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 259.30 mm N/A Seal Guides
260 X 3 S-70 N/A
134752
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 260.00 mm N/A Seal Guides
264 X 3 S-70 N/A
134753
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 264.00 mm N/A Seal Guides
270 X 3 S-70 N/A
134754
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 270.00 mm N/A Seal Guides
280 X 3 S-70 N/A
134755
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 280.00 mm N/A Seal Guides
300 X 3 S-70 N/A
134756
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 300.00 mm N/A Seal Guides
315 X 3 S-70 N/A
134757
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 315.00 mm N/A Seal Guides
320 X 3 S-70 N/A
134758
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 320.00 mm N/A Seal Guides
350 X 3 S-70 N/A
134759
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 350.00 mm N/A Seal Guides
440 X 3 S-70 N/A
134760
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 440.00 mm N/A Seal Guides
505 X 3 S-70 N/A
134761
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 505.00 mm N/A Seal Guides
518.5 X 3 S-70 N/A
134762
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.00 mm N/A 70 N/A 518.50 mm N/A Seal Guides
174 X 3.2 S-70 N/A
134789
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.20 mm N/A 70 N/A 174.00 mm N/A Seal Guides
219.5 X 3.2 S-70 N/A
134790
N/A Metric Standard O-Ring N/A Silicone N/A N/A 3.20 mm N/A 70 N/A 219.50 mm N/A Seal Guides
Unit of Measure
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