7/16" ID x 3/4" OD x 1/8" EPDM Rubber Flat Washers, Weather & UV Resistant, Non-Conductive Spacers for Electrical, Equipment & Outdoor Mounting (12 Pack)

These 7/16" ID x 3/4" OD x 1/8" EPDM rubber flat washers provide reliable sealing, spacing, cushioning, and vibration isolation for electrical panels, control enclosures, equipment mounting, and industrial hardware applications. Each pack includes 12 precision die-cut washers designed to distribute clamping force evenly while helping protect painted and coated surfaces from metal-to-metal contact. Manufactured from durable all-weather EPDM rubber, these washers resist moisture, UV exposure, ozone, and temperature extremes for dependable indoor and outdoor performance. Their non-conductive properties make them well suited for electrical panels, junction boxes, control cabinets, HVAC equipment, fabrication, maintenance, and general MRO applications. The flexible 1/8" (3 mm) rubber construction helps reduce vibration transfer, absorb shock, and provide a secure cushioning interface between mounting surfaces. Material properties are provided for general reference only. Buyers are responsible for verifying suitability for their specific application. EPDM rubber resists UV, ozone, moisture, and weathering while operating in temperatures from -40°F to 250°F (-40°C to 121°C). Material properties are provided for general reference only. Buyers are responsible for verifying suitability for their specific application. Package includes 12 EPDM rubber flat washers.

• PRECISE DIMENSIONS: 7/16" (11 mm) inner diameter, 3/4" (19 mm) outer diameter, and 1/8" (3 mm) thickness provide a consistent fit for common electrical, industrial, and equipment mounting applications.
• ALL-WEATHER EPDM RUBBER: Durable EPDM rubber resists UV, ozone, moisture, weathering, and temperature extremes for dependable indoor and outdoor performance.
• NON-CONDUCTIVE INSULATION: Electrically non-conductive material helps isolate hardware while reducing metal-to-metal contact in electrical panels, control enclosures, and equipment assemblies.
• VIBRATION & SURFACE PROTECTION: Cushions mounting surfaces, helps reduce vibration transfer, distributes clamping force, and protects painted or finished surfaces from damage.
• INDUSTRIAL GRADE PERFORMANCE: Precision die-cut construction provides consistent dimensions for electrical panels, HVAC equipment, machinery, fabrication, maintenance, and general MRO applications.
• METRIC SIZE: Measures 11 mm ID × 19 mm OD × 3 mm thick, making these washers suitable for both inch and metric equipment and hardware
• 12-PACK VALUE: Includes 12 EPDM rubber flat washers for repairs, replacements, maintenance, or keeping extras on hand for future service work.