LOCKNUT (Yale YT213390)

A damaged locknut can compromise the security of a bolted joint, leading to loosening under vibration. During inspection, a locknut may show signs of thread wear or deformation that reduces its clamping force. Locknut condition affects the ability to maintain consistent tension in fastened assemblies, which is critical for structural integrity. Keeping a locknut in sound condition helps prevent unexpected disassembly of connected components. This aftermarket replacement part references Yale catalog number YT213390. It is a hardware nut type fastener that uses a locking feature to resist loosening from dynamic loads. Verify the serial number or application, then call (562) 693-7748.

Part number variants: YT213390, yt213390