Industrial AS5174K2016 Fitting, Flared Boss Union and Reducer is supplied as a 2‑unit pack under NSN 4730-00-928-3453. The AS5174K2016 designation identifies the model within the SAE AS5174 family of Fittings, Union and Reducer, Flared, and this part is described as a flared boss union and reducer fitting. It combines a union and reducer in a single flared-tube fitting, enabling connections between tubes of different diameters within AS5174‑compliant assemblies. This product is intended for use in systems requiring SAE AS5174 flared fittings with boss-style connections and is sold as two units.
