WASHER - SPLIT LOCK 1/4 (JLG JL104000SJ)

A worn split lock washer can compromise fastener retention in mechanical assemblies. This aftermarket replacement part references the JLG catalog number JL104000SJ. The washer functions by creating tension between a nut and the mating surface to resist loosening from vibration. A split lock washer that has flattened or cracked may allow a fastener to back out during operation. Keeping this washer in sound condition helps maintain consistent clamping force on the joint. The part is a 1/4-inch split lock washer, a common hardware type for securing threaded connections. Verify the serial number or application, then call (562) 693-7748.

Part number variants: JL104000SJ, jl104000sj