Electrical & Enclosure Rubber Washers

Small, thin rubber washers for panel sealing, enclosure glands, standoffs, instrument mounting and electronics assembly — non-conductive, vibration-damping and sized down to 3/16″ OD and 1/32″ thickness for miniature fasteners. Silicone is the choice near heat; Fiber gives a firm, non-squishy spacer; Neoprene and EPDM handle general panel duty.

See the electrical washer guide for insulation and material notes, match metric screws via M3, M4 and M5 pages, or search all 1,700+ sizes in the Washer Size Finder.