The 404-101 is a Piper OEM aircraft nut used as a standard fastening component in various aircraft structural and mechanical assemblies. It provides a threaded locking interface for bolts and screws, ensuring secure clamping force and maintaining joint integrity under operational loads.

In Piper aircraft applications, nuts like the 404-101 are commonly used in airframe structures, landing gear assemblies, flight control linkages, and equipment mounting points, depending on aircraft model configuration. Its primary function is to maintain proper preload in bolted joints and ensure long-term mechanical stability.

Depending on installation requirements, the nut may be used with safety devices such as cotter pins, locking tabs, or locking washers to prevent loosening due to vibration, cyclic loading, and thermal expansion.

Manufactured to Piper OEM specifications, the 404-101 is typically made from aircraft-grade steel or corrosion-resistant alloy steel, often finished with protective coatings such as cadmium, zinc, or equivalent corrosion-resistant plating to ensure durability in aviation environments.

Because it is used in structural and sometimes flight-critical applications, correct torque values and proper installation procedures are essential to maintain airworthiness and system reliability.

Key features include:

Piper 404-101 aircraft nut (OEM fastener component)
Provides secure threaded fastening in aircraft assemblies
Used in airframe, landing gear, and control system structures
Maintains clamping force under vibration and load conditions
Compatible with safety locking methods (e.g., cotter pins, lock devices)
Material: aircraft-grade steel or corrosion-resistant alloy steel
Corrosion-resistant protective coating (application dependent)
Designed for vibration and cyclic load environments
Critical for maintaining joint integrity and structural safety
Direct replacement part per Piper IPC specifications