LH6422T126 - Textron Aviation OEM Nut for Beechcraft Baron Aircraft

LH6422T126 – Textron Aviation OEM Nut for Beechcraft Baron Aircraft

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Overview

The LH6422T126 is a flight-critical, self-locking structural nut, engineered for high-stress, high-fatigue applications on Beechcraft Baron and Bonanza aircraft. This is a high-performance fastener, often manufactured by industry leaders like Howmet Fastening Systems and specified as an OEM component by Textron Aviation under the alternate part number 130909N55. Its design is dictated by stringent aerospace engineering requirements to handle the unique loads of primary airframe joints, such as landing gear and other critical assemblies. Fabricated from an ultra-high-strength steel alloy, the LH6422T126 provides the immense clamping force and vibration resistance necessary for the most demanding structural connections.

Key Features

• Primary Structural Application: Specifically designed for use in flight-critical structural joints that experience the highest loads during flight and ground operations, ensuring the integrity of the airframe.
• Ultra High-Strength Steel Alloy: Manufactured from a premium, heat-treated steel alloy to achieve an exceptionally high tensile strength. This is necessary to properly preload high-strength structural bolts without thread stripping or failure.
• Prevailing Torque Self-Locking: Features an all-metal, prevailing torque locking mechanism. This design provides a consistent and reliable locking action that resists loosening under severe vibration and is not subject to the temperature limitations of a nylon insert.
• Superior Corrosion Protection: Coated with a robust, multi-layer, corrosion-resistant plating (e.g., cadmium or zinc-nickel alloy) to protect the high-strength steel from environmental degradation and ensure long-term, airworthy service.
• Genuine OEM-Specified Part: As a genuine component specified by Textron Aviation, it guarantees conformance to the exact material, performance, and quality control standards of the original aircraft Type Certificate. For a fastener this critical, there is no substitute.

Technical Specifications

• Part Number: LH6422T126
• Alternate Part Number: 130909N55
• Component Type: High-Strength, Self-Locking Structural Nut
• Material: Ultra-High-Strength, Heat-Treated Steel Alloy
• Finish: High-Performance Corrosion-Resistant Plating
• Locking Feature: All-Metal Prevailing Torque
• Thread Specification: Proprietary (Must be verified against the mating bolt and maintenance manual).
• Certification: FAA Production Approval with full material and process traceability.

Aircraft Compatibility

The LH6422T126 is the specified structural nut for some of the most successful and enduring piston aircraft ever produced.

• Primary Aircraft Models:
  • Beechcraft Baron: 55, 58, G58 Series
  • Beechcraft Bonanza: 33, 35, 36, G36 Series

Applications

This proprietary nut is reserved for the most demanding structural connections on the aircraft:

• Landing Gear Systems: A critical fastener in the assembly of main and nose landing gear where shock, shear, and tensile loads are at their most extreme.
• Primary Airframe Structure: Used to join major structural components where the failure of a fastener would be catastrophic.
• Flight-Critical Repairs: The only acceptable hardware for use when performing structural repairs or replacing time-lifed components in accordance with the aircraft's structural repair manual.

Why Choose LH6422T126?

The structural joints of an aircraft, particularly the landing gear, are subjected to immense and complex forces. The integrity of the hardware holding these joints together is paramount. The LH6422T126 is an engineered solution for these specific loads. Using a genuine OEM-specified part is the only way to ensure you are installing a fastener with the certified material strength, precise manufacturing tolerances, and reliable locking performance required to keep these critical connections secure.

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• Meta Title: LH6422T126 Textron Beechcraft Structural Nut for Baron, Bonanza | OEM | Airparts.aero
• Meta Description: Purchase the genuine LH6422T126, a flight-critical, high-strength, self-locking structural nut for Beechcraft Baron and Bonanza landing gear and primary structures. Alternate P/N 130909N55.
• SEO and Plain Text Keywords: LH6422T126, 130909N55, Textron Aviation parts, Beechcraft parts, Baron parts, Bonanza parts, structural nut, self-locking nut, flight critical hardware, landing gear hardware, OEM Beechcraft parts, Airparts.aero.

Order Your LH6422T126 Structural Nuts Now

Ensure the absolute structural integrity of your aircraft with genuine, factory-certified, flight-critical hardware. Visit Airparts.aero to order your Textron Aviation LH6422T126 structural nuts today.

SEO-Enhanced Addendum

The LH6422T126's all-metal, self-locking design is critical for its application. Unlike a nylon insert nut (like an MS21044), this nut's locking feature is created by subtly deforming the upper threads of the nut into a non-circular shape. As the bolt is threaded through, these threads are forced to conform to the bolt's shape, creating a powerful, spring-like grip. This design is not subject to the ~250°F temperature limitation of a nylon insert, making it suitable for applications where higher temperatures may be encountered, such as near brakes or in certain areas of the firewall. This robust locking mechanism is designed to be reusable for a limited number of cycles (per the maintenance manual), while providing consistent prevailing torque throughout its service life.

Note: This is a flight-critical structural component, often with a specific life limit or mandatory replacement schedule. It must only be used in the application specified by the Textron Aviation maintenance manual. Installation requires the use of a calibrated torque wrench and adherence to all specified procedures, which may include specific lubrication requirements.