The Dichtomatik OR 3.984 x 0.139" O-ring is engineered from 70 CR (Chloroprene Rubber) for superior sealing performance. This product, from Freudenberg-NOK, is ideal for a variety of applications requiring reliable sealing under pressure. Its dimensions ensure compatibility with standard fittings, making it a versatile choice for both industrial and automotive uses. The C700M formulation enhances its resistance to environmental factors, ensuring longevity and durability. This O-ring meets industry standards, providing peace of mind in preventing leaks and maintaining system integrity.