The present disclosure concerns an assembly including at least one unit assembly of a nacelle for a turbojet engine, and the assembly is movable relative to a fixed structure along at least one associated guide assembly. The guide assembly includes: at least one guiding element secured to the fixed structure; at least one guided element secured to the unit assembly, shaped so as to move along the guiding element; at least one contact surface common to said guiding and guided elements. In particular, the guided element and the guiding element present each at least one profile, and the profiles is non-complementary to each other at least at the contact surface, the profiles being shaped so as to achieve at least one plane abutment connection at least during circumferential forces of the unit assembly.