WASHER (Komatsu KO3KB-55-42220)

KO3KB-55-42220: A worn washer can compromise the clamping force of a bolted joint, leading to loosening over time. The Komatsu catalog reference KO3KB-55-42220 identifies this aftermarket replacement part as a 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 common generic failure consequence is that a missing or crushed washer can allow the fastener to embed into the softer material, reducing preload. This item ships at approximately 0.01 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO3KB-55-42220, ko3kb-55-42220, KO3KB5542220, ko3kb5542220