The Freudenberg-NOK OR 4.109" 70 VMQ SI70A4 seal is engineered for effective sealing in demanding applications. This O-ring has a diameter of 4.109 inches and a thickness of 0.139 inches, crafted from durable VMQ silicone rubber, which offers superior resistance to heat and chemicals. With a hardness of 70 Shore A, it maintains excellent elasticity and resilience. This seal meets stringent industry standards, making it ideal for use in automotive, aerospace, and industrial environments. Its precise sizing and high-quality material ensure a reliable seal, enhancing the longevity and efficiency of your systems.