HIROBO HI2529006 O-RING P-3 5pcs rubber O-ring spare pack  [HI2529006]

O-ring pack for helicopter maintenance

This HIROBO HI2529006 O-RING P-3 pack provides five replacement O-rings supplied as an RC-scale accessory for helicopter general parts. The set is intended as a simple consumable for routine inspection and small repairs on Hirobo model helicopters and other compatible general parts where small rubber seals are used.

O-rings are commonly used to seal linkages, fittings and maintenance points that require a compressible rubber seal. Replace O-rings when they show cracking, flattening, or hardened surfaces to restore reliable sealing and to avoid play in linkages that can affect control precision. The pack quantity is 5 pcs which lets you carry spare rings for multiple quick fixes.

Installation is straightforward: remove the worn ring, clean the mating surfaces, lightly lubricate with an RC-safe silicone lubricant if required, and fit the new O-ring without over-stretching. For tuning and setup, ensure the O-ring does not introduce unwanted preload or binding on moving parts; check full range of motion after fitting.

This article treats the item strictly as an RC-scale helicopter accessory and does not imply any use on full-scale or non-model vehicles.