This 5/8" inside diameter rubber flat washer is designed for reliable sealing, spacing, and vibration isolation across a wide range of uses. With a 1 1/4" outer diameter and 1/8" thickness, it fits snugly into plumbing systems, faucet assemblies, shop tools, and automotive applications where moderate compression and rubber dampening are required. Made from EPDM, this washer resists water, heat, ozone, and common chemicals, making it ideal for both indoor and outdoor use. Whether you're replacing a worn gasket, spacing hardware in a shop setting, or assembling custom equipment, this washer offers dependable performance where precision and durability matter. 5/8" ID x 1 1/4" OD x 1/8" thick rubber washer for sealing and spacing tasks in various applications EPDM material offers resistance to water, heat, and common plumbing or automotive chemicals Designed for faucet repair, valve sealing, pipe fittings, and mechanical maintenance tasks Works well in shop equipment, threaded assemblies, and general-purpose DIY installations Used in equipment seals, tool mounts, and anywhere a snug rubber spacer is needed