Hirobo HI2529004 O-ring P-16 Replacement 5 Pack  [HI2529004]

P-16 O-ring pack for maintenance

The Hirobo HI2529004 package includes five P-16 O-rings sized for common helicopter servicing and small sealing tasks. They are suitable as replacement seals for Hirobo helicopter components and other small RC parts specifying P-16 rings.

To fit: extract the damaged O-ring, check the seating surface for nicks or grit, then fit the new ring so it lies flat and untwisted. Where appropriate, a light smear of silicone-compatible lubricant will make installation easier and help the seal last longer.

These rings support maintenance and reliability rather than tuning changes; they maintain seals, reduce minor vibration at attachment points, and ensure proper spacing where used. Keep spares on hand for prompt repairs and consistent service intervals.