The 515-1222-801F is a clear polycarbonate lens assembly designed for LED indicator mounting with diagonal pin configuration. It features a diffuse front curve surface with a 0.130-inch diameter and 0.887-inch center line distance between mounting pins, providing precise optical and mechanical alignment. The lens is manufactured from clear polycarbonate material rated UL 94V-0 with a diffuse finish using Charmile 24 or equivalent mold-tec process, ensuring consistent light diffusion and durability. The assembly includes cavity identification and Dialight logo marking on the knockout pin and is RoHS compliant. This component is commonly used in network equipment and telecommunications devices, such as Cisco networking products, where reliable LED indication and precise mounting are essential.