NUT - JAM (Komatsu KO01500-21008)

KO01500-21008: A damaged jam nut can compromise the security of a threaded assembly, leading to loosening under vibration. During inspection, a jam nut may show signs of thread wear or deformation that reduce its locking ability. This aftermarket replacement part references the Komatsu catalog and cross-references part number KO01500-21008. The jam nut functions as a thin fastener used to lock another nut in place by applying friction against the threads. A common failure consequence is gradual loosening of the primary fastener, which can cause mechanical play or misalignment. Keeping a jam nut in sound condition helps maintain consistent clamping force in threaded joints. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO01500-21008, ko01500-21008, KO0150021008, ko0150021008