1513174-3 – Textron Aviation OEM Nut (Gray Panel)
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Overview Section
The Textron Aviation 1513174-3 is an Original Equipment Manufacturer (OEM) Nut specifically identified as a "NUT GY" (Nut, Gray). Unlike standard structural hardware nuts (like AN or NAS fasteners), this part is typically a decorative or panel-mounting component used to secure instrument bezels, trim pieces, control panel overlays, or other interior non-structural assemblies within the cockpit or cabin of various Cessna aircraft models.
Its most critical features are its aesthetic finish (the gray color) and its dimensional compatibility with the components it secures. As a certified Textron part, it guarantees that the appearance, fire-resistance, and thread fit meet the original aircraft manufacturing and airworthiness standards for interior components, which include considerations for crew safety and cosmetic uniformity.
Key Features Section
Aesthetic Finish (Gray Color): The primary distinguishing feature is its finished gray color, designed to match the specific color scheme and texture of the adjacent cockpit or cabin trim and instrument panels.
OEM Certified Quality: Guarantees precise dimensions and material composition specified by Textron Aviation, ensuring a correct thread fit and durable finish.
Non-Structural Application: Primarily used for mounting or securing interior trim, bezel rings, data plates, or plastic covers in the cockpit and cabin area.
Fire Safety Compliant: As an interior component, the material (whether plastic or metal with a coating) is selected to meet cabin fire and smoke regulations.
Simple Installation: Designed for easy hand or tool installation onto a corresponding threaded stud or switch bushing.
Technical Specifications Section
Part Number: 1513174-3
Component Type: Panel Mounting Nut / Decorative Nut
OEM Manufacturer: Textron Aviation (Cessna)
Designation: NUT GY (Nut, Gray)
Material: Likely high-grade, durable plastic (e.g., ABS, Nylon) or a low-strength metal alloy with a gray surface coating.
Thread Size: Must be confirmed by OEM drawing (Typically a fine machine thread corresponding to standard switch or bezel mounting studs).
Application: Interior Cockpit/Cabin Non-Structural Fastening
Color: Gray
Governing Specifications: Certified under FAA-PMA/OEM standards for use in Textron Aviation aircraft interior assemblies.
Aircraft Compatibility Section
Cessna Single-Engine Piston: Used across various models for instrument panel trim and control knob retention (e.g., Cessna 172, 182, 210).
Cessna Twin-Engine/Turbine: Found in the cabin and cockpit assemblies of Citation Jets and turboprops, securing panels and interior components.
Note: This nut is often used in multiples to secure entire panels. Its precise thread pitch and diameter must be confirmed against the corresponding mounting stud or component in the aircraft’s Illustrated Parts Catalog (IPC).
Applications Section
Instrument Bezel Retention: Securing the trim rings or bezels around flight instruments and avionics units.
Panel Trim Attachment: Fastening decorative or functional trim pieces to the main instrument panel structure.
Switch/Indicator Mounting: Used on the threaded shaft of certain non-structural switches or annunciator lights to secure them flush against the panel surface.
Why Choose the 1513174-3?
The 1513174-3 ensures cosmetic uniformity and airworthiness compliance in the cockpit. While not a high-load structural part, using a non-certified, off-the-shelf nut risks: 1) Incompatible thread pitch, leading to damage of the component's mounting stud; 2) Poor durability, causing the finish to flake or chip; or 3) Non-compliant material, potentially violating fire/smoke standards for interior materials. The OEM-certified "Gray Nut" guarantees the correct size, the certified aesthetic color, and compliance with all FAA regulations for interior flight deck components, preserving the aircraft's finish and resale value.
The primary engineering requirement for the 1513174-3 is its ability to provide sufficient frictional torque to resist loosening due to continuous cockpit vibration without requiring excessive installation torque that might damage the fragile instrument housing or panel material. Given its likely material composition (plastic or soft metal), it may rely on the inherent elasticity of the material or specific thread geometry to function as a low-level self-locking fastener. Crucially, the gray pigment used in the finish must be stable against UV radiation (sunlight exposure through the windshield) and common cleaning agents to ensure its color integrity and texture remain consistent over the lifespan of the interior.
Note: The 1513174-3 is a non-structural component. However, using the exact OEM part is essential to maintain the cosmetic standard of the flight deck. Care should be taken during installation to apply only the necessary torque to avoid stripping the threads of the nut or the component it secures.
Documentation
Textron Aviation (Cessna) Illustrated Parts Catalog (IPC): Required for definitive part number verification by aircraft model and interior location.
Cessna Interior Trim Standard Drawings: Reference for color, texture, and material specifications.