Product Description
Locking nut
Frequently Asked Questions
Q: What is part 00591-43465-81 and where is it used?
A: The 00591-43465-81 is a locking nut used in forklift hydraulic and mechanical assemblies. It prevents vibration loosening of critical fasteners in valve bodies, pump connections, and structural linkages.
Q: Which forklift brands use this locking nut?
A: This locking nut is used in Toyota, Crown, Raymond, Yale, Hyster, and other OEM forklifts that require secure fastening of hydraulic and mechanical components. Verify exact application and thread size for your equipment model.
Q: What type of locking mechanism does this nut use?
A: Locking nuts typically use nylon insert, all-metal deformed thread, or locking washer designs to prevent vibration loosening. The specific locking mechanism is engineered to maintain torque without damaging threads.
Q: Can this locking nut be reused after removal?
A: Most locking nuts can be removed and reinstalled if the nylon insert or locking feature is still intact. Do not force removal as this may damage the locking mechanism. If the nut spins freely without tightening, replace it.
Q: How do I identify if this locking nut needs replacement?
A: Replace this nut if it spins freely without gripping the bolt, if there is visible damage to threads or the locking feature, if components it secures are loose or moving excessively, or if it has been removed and reinstalled multiple times.