The item consists of a flange with the part number 316620-1. It has a general circular shape with a flat area measuring 1.688 inches from the center on one side, and it features three slots along its circumference spaced at 90-degree intervals. The item is processed with a chemical film per MIL-C-5541, Class 3/F-21, Method 5, and an enamel per F-157, Method 1, Type 3, in color no. 37038.