The LN9161-05M Nut is a precision aerospace-grade fastener used in aircraft structural and mechanical assemblies. It provides secure threaded engagement with matching bolts or studs in applications requiring high reliability under vibration, load, and thermal cycling.

The “M” variant typically indicates a metric-thread configuration within the LN9161 specification family, depending on installation standard and application.

Its primary functions include:

Securing bolted connections in aircraft assemblies
Maintaining stable clamping force under vibration and operational stress
Ensuring reliable threaded engagement in safety-critical systems

Nuts like the LN9161-05M are widely used in aviation because they provide consistent locking performance and durability in lightweight, high-reliability aircraft structures and systems.