NutSold as an aftermarket replacement, contact us to verify fit for your application, this nut clamps an assembly together at a defined torque value and locking method. Service techs replace nuts like AC02205-10812 when threads gall during removal, lock features wear out from repeated cycles, or corrosion makes removal damage the original part. Reusing self-locking nuts more than once defeats the design and creates a comeback waiting to happen. Critical fasteners on engine, brake, and steering systems are not the place to substitute hardware-store equivalents that lack proper grade markings. Confirm the thread pitch, diameter, height, and locking style against the original nut before installation.Aftermarket replacement part, cross-references original part number AC02205-10812.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC02205-10812, ac02205-10812, AC0220510812, ac0220510812 ⚠ 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.