636514 - ESAB Copper Flat Washer 1.00 OD x 0.64 ID

Fix Your Rig with the Right Copper Washer

When you're in the middle of a job, the last thing you need is a leaky connection or a loose fitting shutting down your welder. The ESAB 636514 Copper Flat Washer is the exact replacement part you need to get your gear back in fighting shape. Don't settle for a random washer from the bottom of your toolbox that "looks about right." Using the correct size and material is crucial for keeping your welding machine running smoothly and safely.

Why Copper Matters
You might wonder why this washer is copper instead of steel. In the welding world, copper is king for a few reasons. First, it's softer than steel, which means when you tighten down that nut or fitting, the washer crushes just enough to form a tight, leak-proof seal. This is huge for gas lines, coolant hoses, or hydraulic connections on heavy industrial power sources. Second, copper doesn't rust like cheap steel, so it holds up better in the shop environment. If this washer is part of an electrical connection, copper's conductivity ensures you aren't losing power through a high-resistance joint.

Perfect Fit for the Job
This washer measures 1 inch on the outside and has a 0.64-inch hole in the middle. That 0.64-inch ID is designed to slide perfectly over 5/8-inch fittings or bolts without slop. A sloppy washer can shift around, leading to uneven pressure and eventual leaks. With a thickness of 0.05 inches, it's sturdy enough to take the torque without splitting but thin enough to fit in tight assemblies. Whether you are rebuilding a torch, fixing a regulator connection, or swapping out internal components on your power source, this is the OEM part that fits the first time.

Keep Your Spares Stocked
Every welder knows that small parts are the ones that get lost or damaged the easiest. Dropping a washer into a pile of metal shavings usually means it's gone forever. Grab a few of these ESAB 636514 washers to keep in your parts organizer. Next time you crack open a line for maintenance or repair, you'll be ready to seal it back up properly. Trust genuine ESAB parts to keep your arc stable and your shop safe.