The Freudenberg-NOK 1.299" O-Ring, model S701B, is constructed from durable 70 VMQ (silicone) material, ensuring exceptional resistance to heat and chemicals. With a cross-section of 0.103", this O-Ring is designed for effective sealing in various applications, including automotive and industrial sectors. Its precise dimensions guarantee a secure fit, enhancing the reliability of your systems. This O-Ring adheres to industry standards, making it a dependable choice for professionals seeking quality and performance.