Provided is an electrical part, a nonaqueous electrolyte cell, and a lead wire and a sealable container for use therein, with which the adhesive property and sealing performance in an initial state and in an electrolyte-contacting state are enhanced. An electrical part includes a sealable container that includes a metal layer and a lead conductor that extends from inside of the sealable container to outside of the sealable container, the sealable container and the lead conductor being heat-sealed in a seal part. At least in part of the seal part, a thermal adhesive layer containing aluminum polyphosphate is provided in a portion between the metal layer and the lead conductor so as to be in contact with the lead conductor.