The item code 18512.6 corresponds to a cable gland with specific specifications: it has a 3/8" National Pipe Taper (NPT) thread and is made of brass with a nickel-plated finish, specifically designed for use with silver connectors. The product name mentioned is NPB/TPE - Cable Gland Brass, Nickel Plated 3/8" NPT Silver from Adibuja.