Castle NutSold here as an aftermarket replacement under reference AC0000-61016, with fit confirmation available on request by phone or email. Slotted castle nut paired with a cotter pin to lock critical fasteners such as steer axle king pins and tie rod ends. The slotted design lets a service tech align and pin the nut after final torque, preventing back-off. In-house maintenance teams and independent rebuilders rely on matching service hardware so a teardown does not stall waiting on parts. Using the correct grade and thread keeps critical joints tight under the vibration and load cycles a working forklift sees through every shift.Aftermarket replacement part, cross-references original part number AC0000-61016.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC0000-61016, ac0000-61016, AC000061016, ac000061016 ⚠ 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.
