Hirobo HI2509019 2 x 28 Parallel Pin for Hirobo Helicopter Parts  [HI2509019]

Retention pin for helicopter control linkages

This scale RC replacement pin is made for helicopter maintenance and small-part swaps. The HI2509019 is a 2 x 28 parallel pin designed for use in Hirobo general parts, acting as a compact retention component for linkages and joint assemblies on small radio-controlled helicopters.

It serves as a compact locating and retaining element: when passed through matched components it limits axial movement and helps keep control linkages aligned. As a simple mechanical connector, it reduces end-play and creates repeatable pivot points that influence servo throw precision and trim stability.

Installation notes and practical tips:

• Check hole alignment before pressing the pin in to prevent bending the pin or deforming mating parts.
• Fit the pin in the correct orientation and make sure it sits flush with adjoining parts to preserve linkage geometry.
• During routine inspections or after any hard landing, look for wear, corrosion, or deformation and replace the pin if you see damage to avoid extra play.