The Freudenberg-NOK O-ring (OR) with a diameter of 3.850 inches and a cross-section of 0.275 inches is made from 75 Shore A VMQ silicone rubber. This O-ring is designed for high-performance sealing in applications exposed to extreme temperatures and chemicals. Its silicone composition provides excellent flexibility and resilience, ensuring a tight seal that prevents leaks. Ideal for use in various industries, including automotive and manufacturing, this O-ring meets stringent quality standards, making it a reliable choice for engineers and technicians.