PMS/LTM Forged Socket (TYPE S05) The S05 series illustrates GN Rope Fittings’ engineering excellence in Permanent Mooring Systems (PMS) and Long Term Mooring (LTM) solutions. These high-capacity forged sockets are specifically engineered for heavy-duty wire rope terminations in critical offshore applications. A key design feature is the preparation for flange-mounted bending stiffeners, which protect the wire rope from buckling during the demanding phases of transport and installation.