HIROBO HI2529006 O-RING P-3 5pcs Spare Rubber O-Rings  [HI2529006]

O-ring set for precise control tuning

This HIROBO HI2529006 O-RING P-3 set supplies five replacement O-rings as basic consumables for helicopter model parts. The pack is intended for use during tuning, setup, and minor repairs on model helicopters and other compatible components that rely on small rubber seals.

O-rings keep linkages and fittings sealed and can also affect preload and endplay in control linkages; replace any that are cracked, flattened, or hardened to maintain predictable control inputs. The 5 pcs quantity gives you a few spares to support setup sessions and quick fixes.

To fit, remove the old ring, clean all contact surfaces, apply a small amount of RC-safe silicone lubricant if helpful, and seat the new O-ring without over-stretching. After refit, cycle the mechanism to ensure there is no binding or added preload that could alter tuning.

The note describes the product strictly as an accessory for RC-scale helicopters and does not suggest use on full-scale or non-model vehicles.