O-ring boss seal

An O-ring boss seal is a type of fluid seal commonly used in hydraulic and pneumatic applications. It typically consists of an O-ring, which is a circular elastomeric seal that fits into a groove, and a mating surface that is designed to compress the O-ring when the two parts are assembled. The O-ring boss seal design is characterized by: 1. **Groove Design**: The groove is usually machined into one of the mating surfaces.