DS EN 3752:2005 Aerospace Series - Nuts, Self-Locking, Mj Threads, In Heat Resisting Steel Fe-Pa2601 (A286), Mos[2] Coated - Classification: 1100 Mpa (At Ambient Temperature)/425 Degrees C - Technical Specification Defines the characteristics; qualification and acceptance requirements for self-locking nuts with MJ threads in FE-PA2601, MoS[2] coated, for aerospace applications.