The Imperial 30266 Compression Nut 3/8" is to provide a precise mechanical interface for compatible compression fittings in commercial kitchen equipment. Designed to work with a compression ferrule and mating fitting body, the nut applies controlled pressure as it is tightened, allowing the ferrule to grip the tubing and form a reliable seal. This fastening action minimizes movement, ... https://partsfe.com/nut-for-imperial-part-30266