Special Features:

Counterbore 0.180 in. Diameter holes to 0.375 in. Diameter by 0.094 in. Deep; glaze all surfaces except bottom

Properties:

An insulator having flat surfaces, with or without holes, whose thickness does not exceed 25 percent of its length or width, whichever is smaller, and whose shape is other than round. Excludes insulator (1), spacer; insulator (1), washer; mounting pad, electrical-electronic component; plate, electrical shield; and terminal board.