WASHER (Hyster HY159188)

A worn washer can compromise the clamping force of a bolted joint, leading to loosening over time. The Hyster catalog reference HY159188 identifies this part as an aftermarket replacement washer. Its primary function is to distribute load evenly under a fastener head or nut. A plain mechanical function of a washer is to prevent galling between the fastener and the mating surface. A concrete generic failure consequence is that a missing or crushed washer can allow the fastener to embed into the softer material, reducing preload. During routine disassembly, a technician may find a washer that has deformed or cracked from repeated torque cycles. Verify the serial number or application, then call (562) 693-7748.

Part number variants: HY159188, hy159188