McFarlane MS21256-1 Locking Clip (Short) is a precision aircraft hardware component designed to secure turnbuckle assemblies in flight control cable systems. Manufactured to MS21256 military specifications, this short locking clip prevents unintended turnbuckle rotation after cable tension has been properly adjusted, helping maintain correct flight control rigging throughout aircraft operation.

The locking clip installs through the turnbuckle assembly using the approved safetying method, providing a simple and effective mechanical lock that resists vibration and operational movement. Its use is critical in preventing changes to cable tension that could affect the performance and accuracy of aircraft control surfaces.

Manufactured from corrosion-resistant spring steel, the MS21256-1 locking clip is engineered for durability, secure retention, and reliable long-term service in demanding aviation environments. It is suitable for use in approved flight control cable assemblies and other aircraft systems utilizing compatible turnbuckle hardware.

During scheduled maintenance and inspections, the locking clip should be checked for proper installation, deformation, corrosion, or signs of damage. Any clip that has been bent excessively or otherwise compromised should be replaced to ensure continued airworthiness and safe operation.

Key Features

- Part Number: MS21256-1
- Manufacturer: McFarlane Aviation
- Component: Locking Clip (Short)
- Specification: MS21256 military standard
- Application: Aircraft turnbuckle safety locking
- Material: Corrosion-resistant spring steel
- Prevents unintended turnbuckle rotation after cable adjustment
- Designed for aircraft flight control cable systems
- Lightweight, durable construction for reliable long-term retention