LOCK NUT (P/N 78433) - New Surplus
P/N: 78433
Category: Nuts
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 1 Available |
Product Description
The 78433 is a prevailing-torque lock nut designed to maintain clamp load in vibration-prone aircraft joints. This all-metal self-locking hex nut resists loosening through mechanical deformation of internal threads, conforming to aerospace standards like MS21042 or NASM25027. Commonly used on airframe brackets and fittings subject to engine vibration and flight loads.
Install per aircraft maintenance manual specifications and FAA AC 43.13-1B guidance. Avoid using on rotating joints where prevailing torque can generate excessive heat.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the LOCK NUT (P/N 78433)?
The 78433 is a prevailing-torque lock nut designed to maintain clamp load in vibration-prone aircraft joints. This all-metal self-locking hex nut resists loosening through mechanical deformation of internal threads, conforming to aerospace standards like MS21042 or NASM25027.
What conditions is the 78433 available in?
The 78433 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
How do I get pricing for the 78433?
The 78433 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.
Do you offer expedited shipping for the 78433?
Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.
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