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 | 
                        
                            Product Guides | 
                                                        
|---|---|---|---|---|---|---|---|---|---|
| BS279 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183980  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 12.984 in329.79 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -279 | Product Guides N/A Seal Guides | 
| BS278 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183981  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 11.984 in304.39 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -278 | Product Guides N/A Seal Guides | 
| BS277 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183982  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 11.484 in291.69 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -277 | Product Guides N/A Seal Guides | 
| BS276 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183983  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 10.984 in278.99 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -276 | Product Guides N/A Seal Guides | 
| BS275 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183984  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 10.484 in266.29 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -275 | Product Guides N/A Seal Guides | 
| BS274 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183985  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 9.984 in253.59 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -274 | Product Guides N/A Seal Guides | 
| BS273 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183986  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 9.734 in247.24 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -273 | Product Guides N/A Seal Guides | 
| BS272 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183987  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 9.484 in240.89 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -272 | Product Guides N/A Seal Guides | 
| BS271 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183988  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 9.234 in234.54 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -271 | Product Guides N/A Seal Guides | 
| BS270 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183989  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 8.984 in228.19 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -270 | Product Guides N/A Seal Guides | 
| BS269 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183990  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 8.734 in221.84 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -269 | Product Guides N/A Seal Guides | 
| BS268 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183991  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 8.484 in215.49 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -268 | Product Guides N/A Seal Guides | 
| BS267 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183992  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 8.234 in209.14 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -267 | Product Guides N/A Seal Guides | 
| BS266 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183993  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 7.984 in202.79 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -266 | Product Guides N/A Seal Guides | 
| BS265 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183994  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 7.734 in196.44 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -265 | Product Guides N/A Seal Guides | 
| BS264 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183995  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 7.484 in190.09 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -264 | Product Guides N/A Seal Guides | 
| BS263 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183996  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 7.234 in183.74 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -263 | Product Guides N/A Seal Guides | 
| BS262 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183997  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 6.984 in177.39 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -262 | Product Guides N/A Seal Guides | 
| BS261 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183998  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 6.734 in171.04 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -261 | Product Guides N/A Seal Guides | 
| BS260 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183999  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 6.484 in164.69 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -260 | Product Guides N/A Seal Guides | 
| BS259 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         184000  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 6.234 in158.34 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -259 | Product Guides N/A Seal Guides | 
| BS258 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         184001  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 5.984 in151.99 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -258 | Product Guides N/A Seal Guides | 
| BS257 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         184002  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 5.859 in148.82 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -257 | Product Guides N/A Seal Guides | 
| BS256 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         184003  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 5.734 in145.64 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -256 | Product Guides N/A Seal Guides | 
| BS255 EP-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         184004  | 
                                Type N/A BS Standard O-Ring | Material N/A EP | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 5.609 in142.47 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -255 | Product Guides N/A Seal Guides | 
 
