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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.

BS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

BS Number

Quantity
BS204 EP-70 N/A
184055
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 0.359 in9.12 mm N/A 0.004 in0.10 mm N/A -204
BS203 EP-70 N/A
184056
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 0.296 in7.52 mm N/A 0.004 in0.10 mm N/A -203
BS202 EP-70 N/A
184057
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 0.234 in5.94 mm N/A 0.004 in0.10 mm N/A -202
BS201 EP-70 N/A
184058
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 0.171 in4.34 mm N/A 0.004 in0.10 mm N/A -201
BS178 EP-70 N/A
184059
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 9.737 in247.32 mm N/A 0.003 in0.08 mm N/A -178
BS177 EP-70 N/A
184060
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 9.487 in240.97 mm N/A 0.003 in0.08 mm N/A -177
BS176 EP-70 N/A
184061
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 9.237 in234.62 mm N/A 0.003 in0.08 mm N/A -176
BS175 EP-70 N/A
184062
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 8.987 in228.27 mm N/A 0.003 in0.08 mm N/A -175
BS174 EP-70 N/A
184063
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 8.737 in221.92 mm N/A 0.003 in0.08 mm N/A -174
BS173 EP-70 N/A
184064
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 8.487 in215.57 mm N/A 0.003 in0.08 mm N/A -173
BS172 EP-70 N/A
184065
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 8.237 in209.22 mm N/A 0.003 in0.08 mm N/A -172
BS171 EP-70 N/A
184066
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 7.987 in202.87 mm N/A 0.003 in0.08 mm N/A -171
BS170 EP-70 N/A
184067
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 7.737 in196.52 mm N/A 0.003 in0.08 mm N/A -170
BS169 EP-70 N/A
184068
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 7.487 in190.17 mm N/A 0.003 in0.08 mm N/A -169
BS168 EP-70 N/A
184069
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 7.237 in183.82 mm N/A 0.003 in0.08 mm N/A -168
BS167 EP-70 N/A
184070
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 6.987 in177.47 mm N/A 0.003 in0.08 mm N/A -167
BS166 EP-70 N/A
184071
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 6.737 in171.12 mm N/A 0.003 in0.08 mm N/A -166
BS165 EP-70 N/A
184072
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 6.487 in164.77 mm N/A 0.003 in0.08 mm N/A -165
BS164 EP-70 N/A
184073
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 6.237 in158.42 mm N/A 0.003 in0.08 mm N/A -164
BS163 EP-70 N/A
184074
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 5.987 in152.07 mm N/A 0.003 in0.08 mm N/A -163
BS162 EP-70 N/A
184075
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 5.737 in145.72 mm N/A 0.003 in0.08 mm N/A -162
BS161 EP-70 N/A
184076
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 5.487 in139.37 mm N/A 0.003 in0.08 mm N/A -161
BS160 EP-70 N/A
184077
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 5.237 in133.02 mm N/A 0.003 in0.08 mm N/A -160
BS159 EP-70 N/A
184078
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 4.987 in126.67 mm N/A 0.003 in0.08 mm N/A -159
BS158 EP-70 N/A
184079
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 4.737 in120.32 mm N/A 0.003 in0.08 mm N/A -158
Unit of Measure
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