The Bulgin C1553ALMBG3 is a black overmolded sealing grommet for use with Sub-D and connector products. It is a round grommet made from flame retardant elastomer and is designed to protect connectors from dust and moisture. The grommet has an inside diameter of 16.2 mm, a length of 8.5 mm, and an outside diameter of 30.5 mm. It is UL, CSA, and RoHS Compliant.