BS EP O-Rings | OneMonroe

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.

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

N/A
183980

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 12.984 in329.79 mm

N/A 0.004 in0.10 mm

N/A -279

BS278 EP-70

N/A
183981

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 11.984 in304.39 mm

N/A 0.004 in0.10 mm

N/A -278

BS277 EP-70

N/A
183982

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 11.484 in291.69 mm

N/A 0.004 in0.10 mm

N/A -277

BS276 EP-70

N/A
183983

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 10.984 in278.99 mm

N/A 0.004 in0.10 mm

N/A -276

BS275 EP-70

N/A
183984

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 10.484 in266.29 mm

N/A 0.004 in0.10 mm

N/A -275

BS274 EP-70

N/A
183985

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 9.984 in253.59 mm

N/A 0.004 in0.10 mm

N/A -274

BS273 EP-70

N/A
183986

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 9.734 in247.24 mm

N/A 0.004 in0.10 mm

N/A -273

BS272 EP-70

N/A
183987

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 9.484 in240.89 mm

N/A 0.004 in0.10 mm

N/A -272

BS271 EP-70

N/A
183988

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 9.234 in234.54 mm

N/A 0.004 in0.10 mm

N/A -271

BS270 EP-70

N/A
183989

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 8.984 in228.19 mm

N/A 0.004 in0.10 mm

N/A -270

BS269 EP-70

N/A
183990

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 8.734 in221.84 mm

N/A 0.004 in0.10 mm

N/A -269

BS268 EP-70

N/A
183991

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 8.484 in215.49 mm

N/A 0.004 in0.10 mm

N/A -268

BS267 EP-70

N/A
183992

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 8.234 in209.14 mm

N/A 0.004 in0.10 mm

N/A -267

BS266 EP-70

N/A
183993

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 7.984 in202.79 mm

N/A 0.004 in0.10 mm

N/A -266

BS265 EP-70

N/A
183994

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 7.734 in196.44 mm

N/A 0.004 in0.10 mm

N/A -265

BS264 EP-70

N/A
183995

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 7.484 in190.09 mm

N/A 0.004 in0.10 mm

N/A -264

BS263 EP-70

N/A
183996

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 7.234 in183.74 mm

N/A 0.004 in0.10 mm

N/A -263

BS262 EP-70

N/A
183997

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 6.984 in177.39 mm

N/A 0.004 in0.10 mm

N/A -262

BS261 EP-70

N/A
183998

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 6.734 in171.04 mm

N/A 0.004 in0.10 mm

N/A -261

BS260 EP-70

N/A
183999

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 6.484 in164.69 mm

N/A 0.004 in0.10 mm

N/A -260

BS259 EP-70

N/A
184000

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 6.234 in158.34 mm

N/A 0.004 in0.10 mm

N/A -259

BS258 EP-70

N/A
184001

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 5.984 in151.99 mm

N/A 0.004 in0.10 mm

N/A -258

BS257 EP-70

N/A
184002

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 5.859 in148.82 mm

N/A 0.004 in0.10 mm

N/A -257

BS256 EP-70

N/A
184003

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 5.734 in145.64 mm

N/A 0.004 in0.10 mm

N/A -256

BS255 EP-70

N/A
184004

N/A BS Standard O-Ring

N/A EP

N/A 0.139 in3.53 mm

N/A 70

N/A 5.609 in142.47 mm

N/A 0.004 in0.10 mm

N/A -255