The Pipistrel 5011040 is a hex self-locking aerospace nut used in light aircraft assemblies where a vibration-resistant threaded connection is required.

It incorporates a self-locking feature (typically nylon insert or all-metal prevailing torque design depending on specification variant) that prevents loosening under continuous vibration, cyclic loading, and temperature changes. This makes it suitable for use in light aircraft and composite airframe structures, such as those manufactured by Pipistrel.

It is commonly installed in airframe brackets, avionics mounts, interior fittings, and secondary structural connections, where reliability and reduced maintenance are important.

Key features include:

Pipistrel part number: 5011040
Type: Hex self-locking nut
Aerospace-grade fastening component
Vibration-resistant locking design
Suitable for composite and aluminum airframes
Prevents loosening without additional locking hardware
Used in aircraft structural and system assemblies
Corrosion-resistant construction
Common in Pipistrel light aircraft installations
Applied in brackets, mounts, and mechanical fittings
Designed for long-term operational reliability
Standard aviation maintenance fastener