NUT - CASTLE (Mitsubishi MB1032216)

MB1032216: A damaged castle nut can compromise the security of a pinned fastener assembly. This aftermarket replacement part references Mitsubishi catalog number MB1032216. The castle nut is a type of fastener with slots cut into one end to accept a cotter pin or locking wire. Its primary mechanical function is to secure a threaded shaft while allowing positive locking through the slots. A common failure consequence is that a worn or missing castle nut may allow the fastener to loosen under vibration. Keeping a castle nut in sound condition helps maintain the intended clamping force on the assembly. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB1032216, mb1032216