AN365 / MS21044 Self-Locking Nuts (Cadmium)

Price range: $0.23 through $1.62

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MS21044 / AN365 cadmium-plated all-metal self-locking nuts commonly used in certified and experimental aircraft applications. Designed to resist loosening from vibration and repeated use, these prevailing torque lock nuts are widely used throughout general aviation airframes, engine compartments, brackets, panels, and structural assemblies.

Available in multiple thread sizes and corresponding AN365/MS21044 series part numbers for compatibility with standard aviation hardware applications.

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Commonly used for:

  • Aircraft maintenance and repair
  • Engine and firewall hardware
  • Airframe assemblies
  • Avionics and bracket mounting
  • General aviation hardware replacement

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Equivalent MS21044 and AN365 part numbers are listed within each size variation.

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