10K3B  (RD13235  Key Washer B)

Genuine Shimano key washer B (part #RD13235, SKU 10K3B) — a secondary keyed washer that provides anti-rotation locking for internal spinning reel components. Designated as the "B" variant, this washer fits a specific position in the reel assembly where it prevents shaft or gear components from spinning freely under torque. A worn or missing key washer can lead to internal looseness, clicking sounds, or inconsistent gear engagement. Cross-references with Shimano part number RD13235. OEM replacement guarantees the correct profile and dimensional fit for your reel model. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano spinning reel parts and detailed reel rebuilds.