WSH HARD .31 .340 .690 .09 (Komatsu KO01643-70823)

KO01643-70823: A worn washer can allow fastener loosening under vibration, leading to component misalignment or mechanical noise. The catalog reference KO01643-70823 is an aftermarket replacement part, cross-referenced to the Komatsu OE number. This washer type provides a hardened bearing surface between a fastener head and the mating part. Its plain mechanical function is to distribute clamping load evenly across the joint area. A generic failure consequence is that a collapsed or missing washer can cause fastener pull-through or joint separation. Keeping a washer in sound condition helps maintain consistent torque retention during equipment operation. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO01643-70823, ko01643-70823, KO0164370823, ko0164370823