Spring WasherThis aftermarket spring washer is a low-cost hardware item used throughout forklift assemblies to maintain bolt preload and resist loosening from vibration. Spring washers appear under fasteners on mast carriages, drive flanges, motor mounts, and cover plates. Service techs replace them whenever a joint is broken down because a flattened washer no longer provides the elastic load it was designed for. Confirm inner diameter, outer diameter, and thickness against your existing washer before ordering, and contact us to verify fit if you have a cross-reference from your OEM parts book.Aftermarket replacement part, cross-references original part number AC06002-21030.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC06002-21030, ac06002-21030, AC0600221030, ac0600221030 ⚠ Warning: Some equipment has serial-number breaks that may not be reflected in the catalog. Contact us for clarification before ordering if uncertain.SCR Forklift Parts ships from Whittier, CA with next-day delivery available across the US when needed.