OneMonroe’s Metric Buna O-Rings are engineered to provide reliable sealing performance across a variety of industrial and commercial applications. Made from high-quality Buna-N (Nitrile) rubber, these O-rings are known for their excellent resistance to oils, fuels, and other petroleum-based products, making them ideal for use in environments where durable, leak-proof seals are essential. Buna-N’s resilient properties allow it to maintain its integrity even in challenging temperatures, ranging from -40°F to 250°F, ensuring these O-rings can withstand both low and high-stress conditions with ease. With a broad range of metric sizes available, OneMonroe ensures you’ll find the right fit for your exact specifications.
Our Metric Buna O-Rings are crafted to offer outstanding resistance to abrasion and tearing, providing long-lasting performance in rigorous applications. This makes them well-suited for automotive, aerospace, marine, and hydraulic systems, as well as in general maintenance and repair settings. The unique chemical composition of Buna-N allows these O-rings to endure pressure and friction over extended periods without compromising their sealing capabilities, making them a reliable choice for static and dynamic sealing tasks. Each O-ring is manufactured to precise industry standards, ensuring a dependable fit and function in every installation.
With OneMonroe, you’re getting more than just a product; you’re receiving a commitment to quality and expertise. Our team is dedicated to supporting your projects with high-quality metric Buna O-Rings that meet both industry standards and specific customer requirements. We provide technical support to help you select the best O-ring for your application, offering detailed product specifications and guidance. Trust OneMonroe to deliver durable, efficient, and cost-effective sealing solutions tailored to meet the demands of your unique projects.
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 |
---|---|---|---|---|---|---|---|
35.7 X 3.5 B-90 |
IntegrationID
N/A 120018 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P36 | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 35.70 mm |
36x3.50B70 |
IntegrationID
N/A 120019 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 36.00 mm |
36 X 3.5 B-90 |
IntegrationID
N/A 120020 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 36.00 mm |
37x3.50B70 |
IntegrationID
N/A 120021 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 37.00 mm |
37 X 3.5 B-90 |
IntegrationID
N/A 120022 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 37.00 mm |
37.7x3.50B70 |
IntegrationID
N/A 120023 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P38 | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 37.70 mm |
37.7 X 3.5 B-90 |
IntegrationID
N/A 120024 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P38 | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 37.70 mm |
38x3.50B70 |
IntegrationID
N/A 120025 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 38.00 mm |
38 X 3.5 B-90 |
IntegrationID
N/A 120026 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 38.00 mm |
38.7x3.50B70 |
IntegrationID
N/A 120027 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P39 | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 38.70 mm |
38.7 X 3.5 B-90 |
IntegrationID
N/A 120028 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P39 | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 38.70 mm |
39x3.50B70 |
IntegrationID
N/A 120029 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 39.00 mm |
39 X 3.5 B-90 |
IntegrationID
N/A 120030 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 39.00 mm |
39.7x3.50B70 |
IntegrationID
N/A 120031 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P40 | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 39.70 mm |
39.7 X 3.5 B-90 |
IntegrationID
N/A 120032 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P40 | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 39.70 mm |
40x3.50B70 |
IntegrationID
N/A 120033 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 40.00 mm |
40 X 3.5 B-90 |
IntegrationID
N/A 120034 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 40.00 mm |
40.7x3.50B70 |
IntegrationID
N/A 120035 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P41 | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 40.70 mm |
40.7 X 3.5 B-90 |
IntegrationID
N/A 120036 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P41 | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 40.70 mm |
41x3.50B70 |
IntegrationID
N/A 120037 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 41.00 mm |
41 X 3.5 B-90 |
IntegrationID
N/A 120038 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 41.00 mm |
41.7x3.50B70 |
IntegrationID
N/A 120039 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P42 | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 41.70 mm |
41.7 X 3.5 B-90 |
IntegrationID
N/A 120040 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P42 | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 41.70 mm |
42x3.50B70 |
IntegrationID
N/A 120041 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 42.00 mm |
42 X 3.5 B-90 |
IntegrationID
N/A 120042 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 42.00 mm |