NUT - JAM LOCK PLASTIC (Yale YT17422)

A damaged jam lock nut can compromise fastener security in threaded assemblies. During inspection, a plastic jam lock nut may show cracking or deformation under load. Keeping a jam lock nut in sound condition helps maintain clamp force in vibration-prone connections. This aftermarket replacement part references Yale catalog number YT17422. The nut type provides a plain mechanical function of locking against a primary nut to prevent loosening. A generic failure consequence is that a worn jam nut can allow the primary fastener to back off, leading to joint separation. Verify the serial number or application, then call (562) 693-7748.

Part number variants: YT17422, yt17422