LOCK NUT (P/N 78433) - New Surplus
P/N: 78433
Category: Fasteners & Hardware
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.
Does the 78433 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The LOCK NUT conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.
What material is the 78433 manufactured from?
Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the 78433.
Can I order the 78433 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The LOCK NUT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.