The 819M-PP-GL-2.5 Diffuse Gold Coated Port Plug is for use on 2.5 inch ports of diffuse gold coated 819C or 819D Series spheres.  Tighten with two M3 size set screws using a 1.5 mm allen wrench, which are included with the part.

819M-PP-GL-2.5弥散金涂层端口插头适用于2.5英寸的弥散金涂层819C或819D系列球体端口。用两个M3大小的固定螺丝紧固，使用一个1.5毫米的内六角扳手紧固。