The Bridgeport 1668 3-Inch Steel Bushing Penny prevents foreign matter from entering rigid or IMC conduits. The durable, long-lasting galvanized-coated steel is rust- and corrosion-resistant, low-cost, low-maintenance and provides sacrificial protection to surface damage. With a 3-5/16-inch diameter and 1/16-inch thickness, this solidly-built bushing meets the construction and general industry OSHA-recognized, NRTL-listed electrical standards, is RoHS compliant and meets the stringent bonding and grounding requirements of cULus. Bridgeport builds every product with the same goal in mind: guaranteeing a fast, professional-grade, trouble-free installation. Our wide selection of products are manufactured for innovation, consistency and quality — providing you with connectors, couplings or transition fittings that are safety listed, ensuring code compliance to meet your needs and enable you to do your best work at a lower total cost. When you need a solution you can depend on, be sure to look for Bridgeport Orange.