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  • AS568 Buna O-Rings

OneMonroe Fluorosilicone O-Rings are engineered to provide exceptional sealing performance, especially in demanding environments that require resistance to extreme temperatures, chemicals, and other aggressive agents. Manufactured to AS568 standards, these O-rings are designed with precision to ensure a secure, leak-proof seal in a wide range of applications, from aerospace and automotive to industrial machinery and chemical processing. With their unique fluorosilicone material, OneMonroe O-Rings offer superior resistance to fuels, oils, and solvents, making them a reliable choice for critical applications where other materials may fail.

In addition to chemical and temperature resistance, OneMonroe Fluorosilicone O-Rings provide excellent durability and stability over prolonged use, even in variable environmental conditions. Their resilience against both high and low temperatures makes them ideal for applications that require flexibility and strength, ensuring that seals remain effective and secure. Whether for use in high-pressure systems or equipment exposed to outdoor elements, these O-rings maintain integrity and performance, reducing the need for frequent maintenance and replacements, which saves time and costs over the long term.

At OneMonroe, we understand the importance of quality and reliability in industrial sealing solutions. That’s why our Fluorosilicone O-Rings are crafted with precision and held to rigorous quality standards. Each O-ring undergoes thorough testing to guarantee its performance in the most challenging applications, providing peace of mind to engineers and operators alike. With our commitment to delivering superior products, OneMonroe Fluorosilicone O-Rings offer the quality, resilience, and endurance required for complex and critical sealing needs, making them a trusted choice for industries that demand the best.

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

This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C).

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Size Reference - AS568

Units of Measure

Tube Size O.D.

N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.116 in N/A 90 N/A 0.863 mm0.863 in N/A 0.004 in N/A 0.009 in N/A -911 N/A Imperial N/A 11/16
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.116 in N/A 90 N/A 0.924 mm0.924 in N/A 0.004 in N/A 0.009 in N/A -912 N/A Imperial N/A 3/4
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.116 in N/A 90 N/A 0.986 mm0.986 in N/A 0.004 in N/A 0.010 in N/A -913 N/A Imperial N/A 13/16
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.116 in N/A 90 N/A 1.047 mm1.047 in N/A 0.004 in N/A 0.010 in N/A -914 N/A Imperial N/A 7/8
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.116 in N/A 90 N/A 1.171 mm1.171 in N/A 0.004 in N/A 0.010 in N/A -916 N/A Imperial N/A 1
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.116 in N/A 90 N/A 1.355 mm1.355 in N/A 0.004 in N/A 0.012 in N/A -918 N/A Imperial N/A 1-1/8
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.118 in N/A 90 N/A 1.475 mm1.475 in N/A 0.004 in N/A 0.014 in N/A -920 N/A Imperial N/A 1-1/4
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.118 in N/A 90 N/A 1.720 mm1.720 in N/A 0.004 in N/A 0.014 in N/A -924 N/A Imperial N/A 1-1/2
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.118 in N/A 90 N/A 2.090 mm2.090 in N/A 0.004 in N/A 0.018 in N/A -928 N/A Imperial N/A 1-3/4
N/A AS568 Standard O-Rings N/A Fluorosillicone N/A 0.118 in N/A 90 N/A 2.337 mm2.337 in N/A 0.004 in N/A 0.018 in N/A -932 N/A Imperial N/A 2
N/A
194856 		N/A N/A N/A 0.040 in1.02 mm N/A 70 N/A 0.74 mm0.029 in N/A 0.003 in0.08 mm N/A 0.004 in0.10 mm N/A -001 N/A N/A
N/A
194857 		N/A N/A N/A 0.050 in1.27 mm N/A 70 N/A 1.07 mm0.042 in N/A 0.003 in0.08 mm N/A 0.004 in0.10 mm N/A -002 N/A N/A
N/A
194858 		N/A N/A N/A 0.060 in1.52 mm N/A 70 N/A 1.42 mm0.056 in N/A 0.003 in0.08 mm N/A 0.004 in0.10 mm N/A -003 N/A N/A
N/A
194859 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 1.78 mm0.070 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -004 N/A N/A
N/A
194860 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 2.57 mm0.101 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -005 N/A N/A
N/A
194861 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 2.90 mm0.114 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -006 N/A N/A
N/A
194862 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 3.68 mm0.145 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -007 N/A N/A
N/A
194863 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 4.47 mm0.176 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -008 N/A N/A
N/A
194864 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 5.28 mm0.208 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -009 N/A N/A
N/A
194865 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 6.07 mm0.239 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -010 N/A N/A
N/A
194866 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 7.65 mm0.300 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -011 N/A N/A
N/A
194867 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 9.25 mm0.364 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -012 N/A N/A
N/A
194868 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 10.82 mm0.426 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -013 N/A N/A
N/A
194869 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 12.42 mm0.489 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -014 N/A N/A
N/A
194870 		N/A N/A N/A 0.070 in1.78 mm N/A 70 N/A 14.00 mm0.551 in N/A 0.003 in0.08 mm N/A 0.007 in0.17 mm N/A -015 N/A N/A
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