Generic Chainsaw Bar Nuts 5-Pack — 503220001/530015917/531300382, Compatible with Craftsman, Husqvarna, Poulan Pro, Poulan; Echo ES300/CS490 Fit

Premium 5-Pack Chainsaw Bar Nuts

Keep your chainsaw ready for demanding tasks with a ready-to-use 5-pack of bar nuts designed for broad compatibility. The set references multiple part numbers (503220001, 530015917, 531300382) and is intended to complement brands such as Craftsman, Husqvarna, Poulan Pro, Poulan, and Echo ES300/CS490 in real-world use.

Each nut features a compact hex profile sized 8 mm x 13 mm, crafted to secure the bar firmly while you work. The polished metal finish and precise threading support a smooth, repeatable install, so swapping parts becomes a quick, low-effort task rather than a project.

What you get

• Five bar nuts in each package
• Size: 8 mm x 13 mm hex nut
• Compatibility across popular brands and certain Echo models

Why keep a spare on hand

• Reduces downtime by enabling fast replacements
• Helps maintain proper bar alignment for smoother operation
• Durable construction supports regular maintenance tasks

Usage tip: always power off the saw and allow cooling before replacing bar nuts, then torque to the manufacturer’s specifications for your model.