Hirobo HI2509022 1.5 x 5.8 mm replacement needle pin  [HI2509022]

Small diameter locating pin for RC assemblies

This compact needle pin serves as a replacement locating part for fine control linkages and shaft stops found on model helicopters and related RC gear. Marked as Hirobo HI2509022 and measuring 1.5 x 5.8, it matches common slim-profile pin requirements where a secure retention point is needed.

The primary role of the pin is to reduce lateral slack at pivot points and connection joints. Proper seating in a correctly sized hole ensures steadier control geometry and more predictable linkage response during adjustments and flight setup.

Fitting advice: confirm the mating hole accepts a 1.5 mm nominal diameter and that the 5.8 mm length provides adequate engagement. Insert without bending, inspect for wear after use, and renew the pin if deformation or looseness appears.