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The McNally 1006772 Pylon Torque Adapter Kit is a specialized torque adapter set designed to apply calibrated torque to pylon fasteners and related hardware in accordance with aircraft maintenance procedures. The kit combines Torque Adapter A and Torque Adapter B with a dedicated case to create a complete solution for pylon torqueing tasks.
By translating torque wrench output to hard-to-access or offset pylon fasteners, the kit enables technicians to achieve the required torque values while accounting for adapter geometry. This improves consistency and reduces the risk of under-torquing or over-torquing critical structural connections on rotorcraft pylons and similar assemblies.
Key Features
- Includes Pylon Torque Adapter A (1006774), Pylon Torque Adapter B (1006775), and a dedicated case for organized storage and transport
- Designed to work with standard torque wrenches, extending their reach and orientation to pylon fasteners as specified in technical manuals
- Adapter geometry is intended to support accurate torque application when used with the appropriate correction factors and procedures
- Rugged case protects the adapters and simplifies tool control, making it easy to track and deploy the kit
- Ideal for helicopter pylon installation, adjustment, and inspection tasks in aviation maintenance and depot environments
- Also suitable for other industries where pylon-like structures or offset fasteners require precise torque application
The 1006772 Pylon Torque Adapter Kit equips aviation maintenance professionals with a focused, well-organized solution for pylon torquing operations. With matched adapters and a protective case, the kit supports accurate torque application, improves ergonomics, and helps maintain structural integrity in critical pylon connections.
| General Information | |
|---|---|
| Part # | 1006772 |
| Manufacturer | McNally |
| Shipping Information | |
|---|---|
| Product Weight | 2.9 lbs. |
| Product Dimensions | 10 x 6 x 3 in. |
| Schedule B | 8205599000 |
| ECCN | 9B610.a |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
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QUESTIONS & ANSWERS
Aircraft pylon fasteners secure critical structural connections that support rotor systems and dynamic loads during flight. Improper torque can lead to joint movement, accelerated fatigue, or structural damage over time. Using a dedicated pylon torque adapter kit helps ensure fasteners are tightened exactly to specification, supporting long-term airframe integrity and flight safety.
Pylon torque adapter kits are most often used during pylon installation, adjustment, inspection, and reassembly on rotorcraft. These tasks frequently involve fasteners located in recessed or offset positions where standard torque tools cannot align correctly. The adapters allow technicians to complete these jobs accurately without compromising torque values.
Pylon fasteners are often obstructed by the surrounding structure, making straight-line access impossible. Using extensions or improvised tooling can introduce angle errors and inaccurate torque application. The McNally 1006772 kit is engineered with specific adapter geometry to provide proper access while maintaining torque accuracy when used with approved correction methods.
Any adapter that changes the effective length or angle of a torque wrench can affect the actual torque applied at the fastener. The McNally pylon torque adapters are designed to be used in conjunction with the correction factors outlined in the maintenance manuals to compensate for this change. Applying these corrections helps prevent under-torquing or over-torquing critical structural bolts.
The National Stock Number (NSN) 4920-01-554-9691 enables the precise identification of the McNally 1006772 kit within military and government supply systems. Using the NSN helps procurement teams avoid ordering errors and ensures the correct tooling is sourced, even when part descriptions vary between vendors. This is especially important for standardized fleet and depot-level maintenance operations.
This kit supports repeatable, specification-compliant torque application on critical pylon fasteners without improvisation. Keeping it on hand reduces downtime, improves technician efficiency, and minimizes the risk of torque-related rework. For shops that regularly support rotorcraft maintenance, it’s a reliability and consistency tool as much as a convenience item.
Correctly torqued pylon fasteners help distribute loads evenly across the structure and reduce stress concentrations. The kit enables consistent torque application across multiple maintenance events, technicians, and shifts. That consistency helps prevent long-term issues such as loosening, fretting, or fatigue cracking.
The kit includes Torque Adapter A (Part #1006774) and Torque Adapter B (Part #1006775), packaged in a protective case for organized storage. Each adapter is designed for specific access and torque requirements encountered during pylon-related maintenance. Having matched adapters in a single kit helps ensure technicians use the correct tool for each application.
While commonly associated with rotorcraft pylon maintenance, the principles behind the kit apply to any aircraft structure with recessed or offset torque requirements. Actual compatibility depends on the maintenance manual, fastener geometry, and torque specifications involved. Always verify approved tooling requirements before use on a specific aircraft or assembly.
