Nut securing arrangement for electrical generator

An electric generator rotor radial lead seal arrangement, comprising:

• a rotor comprising a radial lead bore, and a single receiving pocket arranged adjacent to and radially outward relative to the radial lead bore on a surface of the rotor;
• a radial lead arranged in the radial lead bore;
• a compressible seal having an outer diameter configured to coaxially seal against the radial lead bore and an inner diameter configured to coaxially seal against the radial lead when the seal is compressed;
• a nut arranged on the radial lead the nut comprising:
• a contacting surface that compresses the compressible seal when the nut is threaded into the radial lead bore, and
• a ligament on a surface of the nut opposed the contacting surface;
• wherein any angular portion of the ligament may be deformed outwardly into the single receiving pocket to prevent rotation of the nut relative to the rotor, thereby maintaining a desired degree of compression on the seal, wherein an angular position of the nut is not dependent on an angular position of the single receiving pocket to lock the nut against rotation.