U1621

U1621 refers to a designation commonly used in the United States for a specific type of plumbing fitting. It is part of the Uniform Plumbing Code (UPC) standards, which provide guidelines for plumbing installations to ensure safety and sanitation. The U1621 designation typically identifies a specific configuration or material for a threaded adapter or coupling used in plumbing systems. These fittings are crucial for connecting different sizes or types of pipes and ensuring watertight joints. The exact specifications of a U1621 fitting, including its material (e.g., brass, plastic), thread type, and dimensions, would be detailed within the UPC or related standards. Plumbers and plumbing contractors rely on these standardized designations to select the correct components for various applications, ensuring compliance with building codes and the longevity of the plumbing system. The use of such standardized part numbers simplifies material procurement and installation, contributing to the overall efficiency and reliability of plumbing work.