The seamless tubing produces a double thick tongue and seamless barrel design provides a strong connector for demanding applications requiring high reliability. The benefits of YAV-L connectors are the same as YAV connectors for stranded conductors. - Hylug type YAV is a seamless, heavy duty uninsulated compression terminal manufactured from electrolytic copper and is for use on type AN aircraft cable, extra flexible conductors and commercial (code) conductors.