Monroe
OneMonroe
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OneMonroe's AS568 Buna O-Rings offer a versatile and durable sealing solution designed to meet a wide range of industrial needs. Crafted from high-quality Buna-N (Nitrile) rubber, these O-rings provide excellent resistance to oil, fuel, and various chemicals, making them a dependable choice for many applications. Known for their strength and elasticity, our Buna O-rings can perform under varying temperatures and pressures, maintaining a reliable seal even in challenging environments. Each AS568 Buna O-Ring meets industry standards, ensuring quality, consistency, and compatibility across a range of machines, equipment, and components.

Our AS568 Buna O-Rings come in a variety of sizes and thicknesses, allowing users to find the perfect fit for their specific applications. At Monroe, we understand the importance of compatibility, which is why we offer O-rings that meet the AS568 standard sizing requirements, the most widely recognized specification in sealing applications. This sizing consistency ensures that our Buna O-Rings provide a precise fit, minimizing the risk of leaks and enhancing the efficiency and lifespan of the equipment in which they’re used. From automotive engines and hydraulic systems to plumbing and air compressors, OneMonroe AS568 Buna O-Rings deliver reliable performance where it matters most.

Choosing OneMonroe AS568 Buna O-Rings means choosing a product built for durability and reliability. Our Buna-N material offers outstanding wear resistance, meaning these O-rings will withstand repeated use and maintain a strong seal over time. As a trusted leader in industrial components, OneMonroe is dedicated to providing high-quality products and customer service that exceeds expectations. When sealing solutions are critical to your application’s success, OneMonroe’s AS568 Buna O-Rings offer the performance, consistency, and resilience you can trust.

AS568 Buna O-Rings
Unit of Measure
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Item #

IntegrationID

Cross Section Width

Durometer

Inside Diameter

Cross Section Tolerance +/-

Inside Diameter Tolerance +/-

Size Reference - AS568

Alternate P/N

Quantity
177B70 N/A
189999 		N/A 0.103 in N/A 70 N/A 9.487 in N/A 0.003 in0.08 mm N/A 0.055 in1.40 mm N/A -177 N/A
177B90 N/A
190000 		N/A 0.103 in N/A 90 N/A 9.487 in N/A 0.003 in0.08 mm N/A 0.055 in1.40 mm N/A -177 N/A
178B70 N/A
190001 		N/A 0.103 in N/A 70 N/A 9.737 in N/A 0.003 in0.08 mm N/A 0.055 in1.40 mm N/A -178 N/A
178B90 N/A
190002 		N/A 0.103 in N/A 90 N/A 9.737 in N/A 0.003 in0.08 mm N/A 0.055 in1.40 mm N/A -178 N/A
201B70 N/A
190003 		N/A 0.139 in N/A 70 N/A 0.171 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -201 N/A
201B90 N/A
190004 		N/A 0.139 in N/A 90 N/A 0.171 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -201 N/A
202B70 N/A
190005 		N/A 0.139 in N/A 70 N/A 0.234 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -202 N/A
202B90 N/A
190006 		N/A 0.139 in N/A 90 N/A 0.234 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -202 N/A
203B70 N/A
190007 		N/A 0.139 in N/A 70 N/A 0.296 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -203 N/A
203B90 N/A
190008 		N/A 0.139 in N/A 90 N/A 0.296 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -203 N/A
204B70 N/A
190009 		N/A 0.139 in N/A 70 N/A 0.359 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -204 N/A
204B90 N/A
190010 		N/A 0.139 in N/A 90 N/A 0.359 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -204 N/A
205B70 N/A
190011 		N/A 0.139 in N/A 70 N/A 0.421 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -205 N/A
205B90 N/A
190012 		N/A 0.139 in N/A 90 N/A 0.421 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -205 N/A
206B70 N/A
190013 		N/A 0.139 in N/A 70 N/A 0.484 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -206 N/A
206B90 N/A
190014 		N/A 0.139 in N/A 90 N/A 0.484 in N/A 0.004 in0.10 mm N/A 0.005 in0.12 mm N/A -206 N/A
207B70 N/A
190015 		N/A 0.139 in N/A 70 N/A 0.546 in N/A 0.004 in0.10 mm N/A 0.007 in0.17 mm N/A -207 N/A
207B90 N/A
190016 		N/A 0.139 in N/A 90 N/A 0.546 in N/A 0.004 in0.10 mm N/A 0.007 in0.17 mm N/A -207 N/A
208B70 N/A
190017 		N/A 0.139 in N/A 70 N/A 0.609 in N/A 0.004 in0.10 mm N/A 0.009 in0.23 mm N/A -208 N/A
208B90 N/A
190018 		N/A 0.139 in N/A 90 N/A 0.609 in N/A 0.004 in0.10 mm N/A 0.009 in0.23 mm N/A -208 N/A
209B70 N/A
190019 		N/A 0.139 in N/A 70 N/A 0.671 in N/A 0.004 in0.10 mm N/A 0.009 in0.23 mm N/A -209 N/A
209B90 N/A
190020 		N/A 0.139 in N/A 90 N/A 0.671 in N/A 0.004 in0.10 mm N/A 0.009 in0.23 mm N/A -209 N/A
210B70 N/A
190021 		N/A 0.139 in N/A 70 N/A 0.734 in N/A 0.004 in0.10 mm N/A 0.010 in0.25 mm N/A -210 N/A
210B90 N/A
190022 		N/A 0.139 in N/A 90 N/A 0.734 in N/A 0.004 in0.10 mm N/A 0.010 in0.25 mm N/A -210 N/A
211B70 N/A
190023 		N/A 0.139 in N/A 70 N/A 0.796 in N/A 0.004 in0.10 mm N/A 0.010 in0.25 mm N/A -211 N/A
Unit of Measure
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