The Pipistrel 5011119 is a M3 aerospace-grade hex self-locking nut used in light aircraft structural and system assemblies where a secure, vibration-resistant threaded connection is required.

This type of nut uses a self-locking feature (typically nylon insert or deformed-thread all-metal design depending on variant spec) to prevent loosening under vibration, which is critical in ultralight and composite airframes like those produced by Pipistrel. It is commonly installed in airframe brackets, interior fittings, avionics mounting points, and secondary structural assemblies.

The nut is designed to maintain clamping force integrity even under continuous vibration, temperature cycling, and operational loads, making it suitable for aviation use where maintenance access is limited and reliability is essential.

Key features include:

Pipistrel part number: 5011119
Type: Hex self-locking nut
Thread size: M3 metric
Designed for vibration-resistant fastening
Used in aircraft structural and system assemblies
Suitable for composite and light alloy airframes
Prevents loosening without thread locking compounds
Corrosion-resistant aerospace-grade construction
Common in Pipistrel light aircraft installations
Used in avionics, brackets, and interior fittings
Standard aviation maintenance fastener
Compact low-mass design for lightweight aircraft systems