WASHER - 30MMX60MMX3MM (Hyundai HN31AB-00120)

A worn washer can allow fastener loosening under vibration, leading to component misalignment or detachment. This aftermarket replacement part references Hyundai as the OE maker and cross-references part number HN31AB-00120. The washer type provides a bearing surface between a fastener head and the mating part, distributing clamping load. A plain mechanical function of this hardware washer is to reduce friction during tightening. A concrete generic failure consequence is that a missing or crushed washer may cause the fastener to embed into the softer material, reducing clamp force. Keeping a washer in sound condition helps maintain joint integrity over repeated thermal or load cycles. Verify the serial number or application, then call (562) 693-7748.

Part number variants: HN31AB-00120, hn31ab-00120, HN31AB00120, hn31ab00120