The basic design uses two or more high-tensile stainless steel U-formed leaves, that together form an elliptical shape when joined together in the center with plates. The spaces between the U-formed leaves are filled with a special epoxy resin compound with high damping properties. The characteristics of the mount under shock load are determined by the chosen metal construction, while the efficiency of the damping is obtained by the epoxy resin. The Y-Mount distinguishes itself from the X-Mount by an additional rubber element at the top which improves sound isolation significantly.
Optional rubber mounting washers/rings instead of nylon inserts are available to improve sound isolation. All LSM-mounts are registered under a NATO Stock Number. Trelleborg AVS-NL CAGE code is H0040. Typical applications of the LSM include but are not limited to engines, switch cabinets, electronic equipment and floating floors on board of various types of naval ships worldwide.