The 66399-6 is an obsolete, loose-piece Type III+ socket assembly. It is constructed with a brass body and a stainless steel spring, designed for reliable crimp-style interconnections. This contact accommodates a wire size range of 24-20 AWG and an insulation diameter from 2.03 mm to 2.54 mm. The component has a maximum overall length of 20.96 mm and was supplied in small pack packaging. As part of the Type III+ contact family, it is suitable for use in various connector housings.