375784A - Tweco 5/16 Flat Washer Replacement Part

Keep Your Tweco Gear Tight and Right

When you are in the middle of a fabrication job, the last thing you want to worry about is a loose connection on your rig. The Tweco 375784A Flat Washer is the exact replacement part you need to keep your welding equipment assembled correctly and functioning safely. Whether you are rebuilding a MIG gun, fixing a wire feeder mount, or replacing worn-out hardware on your cart or power source, this 5/16" washer is designed to fit perfectly. Unlike hardware store washers that might be too small or made of inferior metal, this OEM part matches the original specs of your machine.

Why does a specific washer matter? In welding, your gear takes a beating. Between the heat of the arc and the vibration of the shop, bolts want to back out. This washer features a wide 1.06-inch outer diameter, which provides a solid footprint to grip the surface and keep your fasteners locked down. It also protects the finish of your equipment from getting chewed up when you tighten down bolts. It’s a small part, but it does a big job in extending the life of your tools.

Don't let a stripped or missing washer turn into a bigger repair bill down the road. Keeping a few of these 375784A washers in your maintenance kit ensures you can perform quick repairs and get back to laying beads. Trust genuine Tweco parts to maintain the performance and durability you expect from your welding setup. It’s the simple, smart way to protect your investment and ensure every part of your assembly is secure.

Key Features

• Perfect Fit: Designed specifically for 5/16" bolts on Tweco equipment.
• Wide Surface Area: 1.06" OD helps prevent loosening and protects surfaces.
• OEM Quality: Built to the same standards as the original parts in your machine.
• Easy Install: Drop-in replacement for worn or lost washers.