AS568 Silicone O-Rings

OneMonroe Silicone O-Rings offer exceptional sealing solutions for a wide range of applications, ensuring reliability and durability under various operating conditions. Known for their superior elasticity and resistance to extreme temperatures, these silicone O-rings provide a strong, consistent seal in environments that demand high performance. Manufactured in compliance with AS568 standards, they are engineered to deliver precision and quality, making them ideal for use in industries such as automotive, aerospace, food and beverage, and medical. Whether you’re working with high heat or low temperatures, OneMonroe’s silicone O-rings maintain their flexibility and sealing strength, ensuring optimal performance over time.

Our silicone O-rings are designed for versatility and longevity. Thanks to their high resistance to compression set and resilience against UV, ozone, and various weather conditions, these O-rings are perfectly suited for both indoor and outdoor applications. This durability is further complemented by silicone's natural resistance to a wide range of chemicals, including water, acids, and bases, making them suitable for applications where exposure to harsh substances is a concern. With a range of sizes available, OneMonroe’s AS568 silicone O-rings provide seamless integration with various equipment, delivering a dependable sealing solution across industries.

OneMonroe is committed to delivering quality products that meet and exceed industry standards. Our silicone O-rings are rigorously tested to ensure consistency and reliability, providing peace of mind for applications that require a dependable seal. Whether for manufacturing, repairs, or new installations, OneMonroe’s silicone O-rings offer an ideal balance of flexibility, resilience, and chemical resistance. Trust in OneMonroe for a sealing solution that combines durability, quality, and exceptional performance across every application.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

Item #	IntegrationID	Cross Section Width	Durometer	Inside Diameter	Cross Section Tolerance +/-	Inside Diameter Tolerance +/-	Size Reference - AS568	Alternate P/N
177S70	N/A 192866	N/A 0.103 in2.62 mm	N/A 70	N/A 240.97 mm9.487 in	N/A 0.003 in0.08 mm	N/A 0.055 in1.40 mm	N/A -177	N/A
178S70	N/A 192867	N/A 0.103 in2.62 mm	N/A 70	N/A 247.32 mm9.737 in	N/A 0.003 in0.08 mm	N/A 0.055 in1.40 mm	N/A -178	N/A
201S70	N/A 192868	N/A 0.139 in3.53 mm	N/A 70	N/A 4.34 mm0.171 in	N/A 0.004 in0.10 mm	N/A 0.005 in0.12 mm	N/A -201	N/A
202S70	N/A 192869	N/A 0.139 in3.53 mm	N/A 70	N/A 5.94 mm0.234 in	N/A 0.004 in0.10 mm	N/A 0.005 in0.12 mm	N/A -202	N/A
203S70	N/A 192870	N/A 0.139 in3.53 mm	N/A 70	N/A 7.52 mm0.296 in	N/A 0.004 in0.10 mm	N/A 0.005 in0.12 mm	N/A -203	N/A
204S70	N/A 192871	N/A 0.139 in3.53 mm	N/A 70	N/A 9.12 mm0.359 in	N/A 0.004 in0.10 mm	N/A 0.005 in0.12 mm	N/A -204	N/A
205S70	N/A 192872	N/A 0.139 in3.53 mm	N/A 70	N/A 10.69 mm0.421 in	N/A 0.004 in0.10 mm	N/A 0.005 in0.12 mm	N/A -205	N/A
206S70	N/A 192873	N/A 0.139 in3.53 mm	N/A 70	N/A 12.29 mm0.484 in	N/A 0.004 in0.10 mm	N/A 0.005 in0.12 mm	N/A -206	N/A
207S70	N/A 192874	N/A 0.139 in3.53 mm	N/A 70	N/A 13.87 mm0.546 in	N/A 0.004 in0.10 mm	N/A 0.007 in0.17 mm	N/A -207	N/A
208S70	N/A 192875	N/A 0.139 in3.53 mm	N/A 70	N/A 15.47 mm0.609 in	N/A 0.004 in0.10 mm	N/A 0.009 in0.23 mm	N/A -208	N/A
209S70	N/A 192876	N/A 0.139 in3.53 mm	N/A 70	N/A 17.04 mm0.671 in	N/A 0.004 in0.10 mm	N/A 0.009 in0.23 mm	N/A -209	N/A
210S70	N/A 192877	N/A 0.139 in3.53 mm	N/A 70	N/A 18.64 mm0.734 in	N/A 0.004 in0.10 mm	N/A 0.010 in0.25 mm	N/A -210	N/A
211S70	N/A 192878	N/A 0.139 in3.53 mm	N/A 70	N/A 20.22 mm0.796 in	N/A 0.004 in0.10 mm	N/A 0.010 in0.25 mm	N/A -211	N/A
212S70	N/A 192879	N/A 0.139 in3.53 mm	N/A 70	N/A 21.82 mm0.859 in	N/A 0.004 in0.10 mm	N/A 0.010 in0.25 mm	N/A -212	N/A
213S70	N/A 192880	N/A 0.139 in3.53 mm	N/A 70	N/A 23.39 mm0.921 in	N/A 0.004 in0.10 mm	N/A 0.010 in0.25 mm	N/A -213	N/A
214S70	N/A 192881	N/A 0.139 in3.53 mm	N/A 70	N/A 24.99 mm0.984 in	N/A 0.004 in0.10 mm	N/A 0.010 in0.25 mm	N/A -214	N/A
215S70	N/A 192882	N/A 0.139 in3.53 mm	N/A 70	N/A 26.57 mm1.046 in	N/A 0.004 in0.10 mm	N/A 0.010 in0.25 mm	N/A -215	N/A
216S70	N/A 192883	N/A 0.139 in3.53 mm	N/A 70	N/A 28.17 mm1.109 in	N/A 0.004 in0.10 mm	N/A 0.012 in0.30 mm	N/A -216	N/A
217S70	N/A 192884	N/A 0.139 in3.53 mm	N/A 70	N/A 29.74 mm1.171 in	N/A 0.004 in0.10 mm	N/A 0.012 in0.30 mm	N/A -217	N/A
218S70	N/A 192885	N/A 0.139 in3.53 mm	N/A 70	N/A 31.34 mm1.234 in	N/A 0.004 in0.10 mm	N/A 0.012 in0.30 mm	N/A -218	N/A
219S70	N/A 192886	N/A 0.139 in3.53 mm	N/A 70	N/A 32.92 mm1.296 in	N/A 0.004 in0.10 mm	N/A 0.012 in0.30 mm	N/A -219	N/A
220S70	N/A 192887	N/A 0.139 in3.53 mm	N/A 70	N/A 34.52 mm1.359 in	N/A 0.004 in0.10 mm	N/A 0.012 in0.30 mm	N/A -220	N/A
221S70	N/A 192888	N/A 0.139 in3.53 mm	N/A 70	N/A 36.09 mm1.421 in	N/A 0.004 in0.10 mm	N/A 0.012 in0.30 mm	N/A -221	N/A
222S70	N/A 192889	N/A 0.139 in3.53 mm	N/A 70	N/A 37.69 mm1.484 in	N/A 0.004 in0.10 mm	N/A 0.015 in0.38 mm	N/A -222	N/A
223S70	N/A 192890	N/A 0.139 in3.53 mm	N/A 70	N/A 40.87 mm1.609 in	N/A 0.004 in0.10 mm	N/A 0.015 in0.38 mm	N/A -223	N/A

N/A
192866

N/A 0.103 in2.62 mm

N/A 70

N/A 240.97 mm9.487 in

N/A 0.003 in0.08 mm

N/A 0.055 in1.40 mm

N/A -177

N/A

178S70

N/A
192867

N/A 0.103 in2.62 mm

N/A 70

N/A 247.32 mm9.737 in

N/A 0.003 in0.08 mm

N/A 0.055 in1.40 mm

N/A -178

N/A

201S70

N/A
192868

N/A 0.139 in3.53 mm

N/A 70

N/A 4.34 mm0.171 in

N/A 0.004 in0.10 mm

N/A 0.005 in0.12 mm

N/A -201

N/A

202S70

N/A
192869

N/A 0.139 in3.53 mm

N/A 70

N/A 5.94 mm0.234 in

N/A 0.004 in0.10 mm

N/A 0.005 in0.12 mm

N/A -202

N/A

203S70

N/A
192870

N/A 0.139 in3.53 mm

N/A 70

N/A 7.52 mm0.296 in

N/A 0.004 in0.10 mm

N/A 0.005 in0.12 mm

N/A -203

N/A

204S70

N/A
192871

N/A 0.139 in3.53 mm

N/A 70

N/A 9.12 mm0.359 in

N/A 0.004 in0.10 mm

N/A 0.005 in0.12 mm

N/A -204

N/A

205S70

N/A
192872

N/A 0.139 in3.53 mm

N/A 70

N/A 10.69 mm0.421 in

N/A 0.004 in0.10 mm

N/A 0.005 in0.12 mm

N/A -205

N/A

206S70

N/A
192873

N/A 0.139 in3.53 mm

N/A 70

N/A 12.29 mm0.484 in

N/A 0.004 in0.10 mm

N/A 0.005 in0.12 mm

N/A -206

N/A

207S70

N/A
192874

N/A 0.139 in3.53 mm

N/A 70

N/A 13.87 mm0.546 in

N/A 0.004 in0.10 mm

N/A 0.007 in0.17 mm

N/A -207

N/A

208S70

N/A
192875

N/A 0.139 in3.53 mm

N/A 70

N/A 15.47 mm0.609 in

N/A 0.004 in0.10 mm

N/A 0.009 in0.23 mm

N/A -208

N/A

209S70

N/A
192876

N/A 0.139 in3.53 mm

N/A 70

N/A 17.04 mm0.671 in

N/A 0.004 in0.10 mm

N/A 0.009 in0.23 mm

N/A -209

N/A

210S70

N/A
192877

N/A 0.139 in3.53 mm

N/A 70

N/A 18.64 mm0.734 in

N/A 0.004 in0.10 mm

N/A 0.010 in0.25 mm

N/A -210

N/A

211S70

N/A
192878

N/A 0.139 in3.53 mm

N/A 70

N/A 20.22 mm0.796 in

N/A 0.004 in0.10 mm

N/A 0.010 in0.25 mm

N/A -211

N/A

212S70

N/A
192879

N/A 0.139 in3.53 mm

N/A 70

N/A 21.82 mm0.859 in

N/A 0.004 in0.10 mm

N/A 0.010 in0.25 mm

N/A -212

N/A

213S70

N/A
192880

N/A 0.139 in3.53 mm

N/A 70

N/A 23.39 mm0.921 in

N/A 0.004 in0.10 mm

N/A 0.010 in0.25 mm

N/A -213

N/A

214S70

N/A
192881

N/A 0.139 in3.53 mm

N/A 70

N/A 24.99 mm0.984 in

N/A 0.004 in0.10 mm

N/A 0.010 in0.25 mm

N/A -214

N/A

215S70

N/A
192882

N/A 0.139 in3.53 mm

N/A 70

N/A 26.57 mm1.046 in

N/A 0.004 in0.10 mm

N/A 0.010 in0.25 mm

N/A -215

N/A

216S70

N/A
192883

N/A 0.139 in3.53 mm

N/A 70

N/A 28.17 mm1.109 in

N/A 0.004 in0.10 mm

N/A 0.012 in0.30 mm

N/A -216

N/A

217S70

N/A
192884

N/A 0.139 in3.53 mm

N/A 70

N/A 29.74 mm1.171 in

N/A 0.004 in0.10 mm

N/A 0.012 in0.30 mm

N/A -217

N/A

218S70

N/A
192885

N/A 0.139 in3.53 mm

N/A 70

N/A 31.34 mm1.234 in

N/A 0.004 in0.10 mm

N/A 0.012 in0.30 mm

N/A -218

N/A

219S70

N/A
192886

N/A 0.139 in3.53 mm

N/A 70

N/A 32.92 mm1.296 in

N/A 0.004 in0.10 mm

N/A 0.012 in0.30 mm

N/A -219

N/A

220S70

N/A
192887

N/A 0.139 in3.53 mm

N/A 70

N/A 34.52 mm1.359 in

N/A 0.004 in0.10 mm

N/A 0.012 in0.30 mm

N/A -220

N/A

221S70

N/A
192888

N/A 0.139 in3.53 mm

N/A 70

N/A 36.09 mm1.421 in

N/A 0.004 in0.10 mm

N/A 0.012 in0.30 mm

N/A -221

N/A

222S70

N/A
192889

N/A 0.139 in3.53 mm

N/A 70

N/A 37.69 mm1.484 in

N/A 0.004 in0.10 mm

N/A 0.015 in0.38 mm

N/A -222

N/A

223S70

N/A
192890

N/A 0.139 in3.53 mm

N/A 70

N/A 40.87 mm1.609 in

N/A 0.004 in0.10 mm

N/A 0.015 in0.38 mm

N/A -223

N/A