57979-4

NUT
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About this product
The 57979-4 is a precision-manufactured aircraft nut intended for use where reliable, repeatable fastening is required. Produced to tight dimensional tolerances from a heat-treated corrosion-resistant alloy and finished for durability, it provides a secure threaded interface for structural and secondary assemblies. Supplied with manufacturer trace paperwork to support certified maintenance records.
57979-4 Datasheet
Lead Time: Stock
UOM: EA
Certification: MANF COFC
8130/EASA Eligible: Yes
PRODUCT DESCRIPTION

57979-4

  • Aerospace-grade material: Made from a high-strength alloy chosen for load capacity and fatigue resistance.

  • Corrosion-resistant finish: Protective coating that withstands moisture, fuels and common cleaning fluids.

  • Precision threads: Rolled or machined threads held to tight tolerances for smooth engagement and consistent preload.

  • Heat-treated body: Enhanced hardness and wear resistance for long service life.

  • Secures bolts in primary structure splice and attach points.

  • Retains studs and bolts on engine brackets during run-ups.

  • Holds fasteners in strut and actuator connections through repeated cycles.

  • Locks down clevis and trunnion bolts on aileron, elevator and rudder assemblies.


  • What tool do I need to install the 57979-4?

A standard wrench or socket that matches the nut’s hex flats is all that’s required for installation.

  • How should I inspect the nut before installation?

Verify threads are clean and undamaged, coating is intact, and the hex flats are not rounded or distorted.

  • What environmental conditions can it tolerate?

The material and finish are selected to resist typical aircraft environments, including humidity, salt-air exposure, fuels and maintenance cleaners.


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