LOCKNUT - 5/16-18 (Bobcat BC91D-5)

BC91D-5: A damaged locknut can compromise the security of a threaded fastener assembly. During inspection, a locknut may show signs of thread wear or deformation that reduce its locking ability. Locknut condition directly affects the clamping force of bolted joints in mechanical systems. Keeping a locknut in sound condition helps maintain consistent tension under vibration or dynamic loads. This aftermarket replacement part references the Bobcat catalog and carries the part number BC91D-5. It is a 5/16-18 locknut, a type of hardware nut designed to resist loosening through a built-in locking feature. Verify the serial number or application, then call (562) 693-7748.

Part number variants: BC91D-5, bc91d-5, BC91D5, bc91d5