Genuine Makita O‑Ring HY00000139 — O‑Ring 35 — replacement sealing ring for pneumatic nailer air/valve assemblies. This precision-molded elastomer seal is specified by Makita as O RING 35 (HY00000139) and restores airtight performance in the cylinder / valve area to stop air leaks and bring back consistent firing and cycling.
Fits a range of Makita coil and finish nailers including AF635, AN613, AN454 and AN453 as shown in Makita parts breakdowns —perfect when you need the correct genuine Makita part for a repair.
Small, simple and easy to replace: keep this part on hand when servicing your tool — it’s one of those essential power tool parts that makes a big difference to compression and reliability.
Jump straight to the Makita spare parts diagrams:
