OneMonroe EP O-Rings are engineered to provide exceptional sealing performance across a variety of demanding environments. These O-rings are crafted from high-quality materials to ensure a long-lasting, tight seal, essential for applications where durability and reliability are paramount. The EP (Ethylene Propylene) construction offers excellent resistance to water, heat, steam, and various chemicals, making these O-rings an ideal choice for both industrial and automotive applications. With a commitment to quality, OneMonroe ensures that every O-ring meets rigorous standards, providing users with peace of mind for critical operations where failure is not an option.
OneMonroe offers a broad selection of BS standard EP O-rings, each designed to meet specific sizing and compatibility needs. These O-rings are manufactured to precision, ensuring a snug and consistent fit that minimizes wear and tear on connected components. Our EP O-rings also boast an impressive operational temperature range, allowing them to maintain elasticity and performance in both high-heat and low-temperature settings. Whether you’re dealing with hydraulic systems, piping, or complex machinery, OneMonroe’s EP O-rings are built to withstand harsh conditions while delivering a reliable seal to prevent leaks and maintain system integrity.
When you choose OneMonroe EP O-rings, you’re selecting a product backed by decades of expertise in the sealing industry. Each O-ring is meticulously crafted to provide maximum durability and resistance to environmental factors that can lead to premature wear. Our commitment to quality and performance has established OneMonroe as a trusted name in industrial solutions. From design to delivery, OneMonroe ensures that every O-ring performs as intended, providing the ultimate sealing solution for even the most challenging applications. Choose OneMonroe EP O-rings for your next project and experience unmatched quality, reliability, and performance.
For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Cross Section Width (in)
Cross Section Width (mm)
Inside Diameter (in)
Inside Diameter (mm)
Item # |
IntegrationID |
Type |
Material |
Cross Section Width |
Durometer |
Inside Diameter |
CSW Tolerance |
BS Number |
---|---|---|---|---|---|---|---|---|
BS356 EP-70 |
IntegrationID
N/A 183930 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 5.350 in135.89 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -356 |
BS355 EP-70 |
IntegrationID
N/A 183931 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 5.225 in132.72 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -355 |
BS354 EP-70 |
IntegrationID
N/A 183932 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 5.100 in129.54 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -354 |
BS353 EP-70 |
IntegrationID
N/A 183933 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.975 in126.37 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -353 |
BS352 EP-70 |
IntegrationID
N/A 183934 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.850 in123.19 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -352 |
BS351 EP-70 |
IntegrationID
N/A 183935 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.725 in120.02 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -351 |
BS350 EP-70 |
IntegrationID
N/A 183936 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.600 in116.84 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -350 |
BS349 EP-70 |
IntegrationID
N/A 183937 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.475 in113.67 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -349 |
BS348 EP-70 |
IntegrationID
N/A 183938 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.350 in110.49 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -348 |
BS347 EP-70 |
IntegrationID
N/A 183939 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.225 in107.32 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -347 |
BS346 EP-70 |
IntegrationID
N/A 183940 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.100 in104.14 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -346 |
BS345 EP-70 |
IntegrationID
N/A 183941 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.975 in100.97 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -345 |
BS344 EP-70 |
IntegrationID
N/A 183942 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.850 in97.79 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -344 |
BS343 EP-70 |
IntegrationID
N/A 183943 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.725 in94.62 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -343 |
BS342 EP-70 |
IntegrationID
N/A 183944 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.600 in91.44 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -342 |
BS341 EP-70 |
IntegrationID
N/A 183945 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.475 in88.27 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -341 |
BS340 EP-70 |
IntegrationID
N/A 183946 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.350 in85.09 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -340 |
BS339 EP-70 |
IntegrationID
N/A 183947 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.225 in81.92 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -339 |
BS338 EP-70 |
IntegrationID
N/A 183948 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.100 in78.74 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -338 |
BS337 EP-70 |
IntegrationID
N/A 183949 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 2.975 in75.57 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -337 |
BS336 EP-70 |
IntegrationID
N/A 183950 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 2.850 in72.39 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -336 |
BS335 EP-70 |
IntegrationID
N/A 183951 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 2.725 in69.22 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -335 |
BS334 EP-70 |
IntegrationID
N/A 183952 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 2.600 in66.04 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -334 |
BS333 EP-70 |
IntegrationID
N/A 183953 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 2.475 in62.87 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -333 |
BS332 EP-70 |
IntegrationID
N/A 183954 |
Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 2.350 in59.69 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -332 |