The SEALFAST 1 5/8" M-ORB X 1" F-NPSM SWIVEL is engineered for high-efficiency fluid transfer in hydraulic applications. It features a male O-ring boss (M-ORB) connection and a female National Pipe Straight Mechanical (F-NPSM) connection, ensuring a secure and leak-resistant seal. Built from durable materials, this swivel can handle high pressures and temperatures, making it suitable for demanding environments. With a diameter of 1 5/8", it offers flexibility in installation and meets industry standards for quality and performance.