130909B175 - Textron Aviation OEM Magnetic Particle Inspected Machine Bolt

130909B175 – Textron Aviation OEM Magnetic Particle Inspected Machine Bolt

Available now on the Airparts.aero Marketplace.

Overview

The Textron Aviation 130909B175 is a genuine OEM, flight-critical structural bolt, engineered for high-stress, high-fatigue applications within the landing gear assemblies of Beechcraft King Air aircraft. This is not a standard AN/MS bolt; it is a proprietary fastener whose material, dimensions, and quality control processes are specified directly by Textron's aerospace engineers. Each 130909B175 bolt is subjected to mandatory 100% Non-Destructive Testing (NDT) via Magnetic Particle Inspection (MPI), a process that guarantees the fastener is free from microscopic flaws that could lead to failure under the extreme loads of ground and flight operations.

Key Features

• Non-Destructive Tested (NDT): Every bolt is individually subjected to Magnetic Particle Inspection (MPI). This critical quality assurance process ensures the fastener is completely free from surface or near-surface cracks, seams, or material inclusions that could become a nucleation site for fatigue failure.
• Ultra High-Strength Steel Alloy: Fabricated from a premium VAR (Vacuum-Arc Remelt) steel alloy, such as H-11 or similar, and heat-treated to achieve an exceptionally high tensile and shear strength required for primary landing gear structures.
• Engineered for Landing Gear: Specifically designed for use in flight-critical landing gear joints where the failure of the fastener would be catastrophic. This includes applications in shock struts, torque links, and gear attachment fittings.
• Superior Corrosion Protection: Plated with a robust, multi-layer finish (typically a diffused nickel-cadmium plating or similar high-performance coating). This provides exceptional corrosion resistance and prevents hydrogen embrittlement, a critical consideration for high-strength steels.
• Genuine Textron OEM Part: As a genuine factory component, it guarantees conformance to the exact material specifications, heat treatment, NDT inspection, and dimensional tolerances required by the aircraft's original Type Certificate.

Technical Specifications

• Part Number: 130909B175
• Component Type: High-Strength, NDT Structural Bolt
• Inspection Method: Magnetic Particle Inspection (MPI) per applicable aerospace standards (e.g., ASTM E1444).
• Material: High-Tensile VAR Steel Alloy (e.g., H-11)
• Finish: Diffused Nickel-Cadmium Plating (or equivalent high-performance coating)
• Head Style: Typically Hexagonal (Hex Head) or other high-torque design.
• Dimensions & Thread: Proprietary to Textron Aviation. Must be verified against the aircraft parts catalog.
• Certification: FAA Production Approval with full NDT and material traceability.

Aircraft Compatibility

The 130909B175 bolt is a specialized component specified for use in some of Textron Aviation's most successful turboprop aircraft. Its application is precise and mandatory as per the manufacturer's documentation.

• Primary Aircraft Models:
  • Beechcraft Super King Air: 200, B200, 300, B300 (350) Series

Applications

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

• Primary Structure Assembly: Used to join major structural components that bear the primary flight and landing loads.
• 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.
• 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 130909B175?

The landing gear is one of the most highly stressed structures on an aircraft. The integrity of the fasteners holding it together is absolutely paramount to safety. The "NDT Inspected" designation means this bolt has been certified to be free of hidden defects that could cause it to fail under stress. Using a genuine Textron Aviation 130909B175 is the only way to ensure you are installing a fastener with a known, verified, and traceable record of material integrity. For a component this critical, there is no substitute.

Order Your 130909B175 NDT Bolts Now

Ensure the structural integrity of your aircraft with genuine, NDT-certified hardware from Textron Aviation. Visit Airparts.aero to order your 130909B175 structural bolts today.

The process of Magnetic Particle Inspection (MPI) for a bolt like the 130909B175 involves inducing a strong magnetic field into the ferromagnetic steel part. If there are any surface or near-surface discontinuities (cracks), they will disrupt the flow of the magnetic field, creating a "flux leakage field." A fluid containing fine fluorescent magnetic particles is then applied to the bolt. These particles are attracted to the leakage fields, accumulating directly over any flaws and becoming brightly visible under an ultraviolet (black) light. This non-destructive process provides a highly sensitive and reliable method for ensuring that each individual 130909B175 bolt is free from the microscopic defects that could otherwise become a nucleation site for fatigue crack propagation under the severe cyclical loads experienced by landing gear components.

Note: This is a flight-critical structural component, often with a specific life limit, requiring mandatory replacement after a certain number of flight hours or cycles. It must only be installed where specified by the aircraft manufacturer's maintenance or structural repair manual. Installation requires the use of a calibrated torque wrench and a new, corresponding high-strength nut and washer, torqued to the precise value specified in the manual.