A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.
30.0 rockwell c minimum and 35.0 rockwell c maximum overall hardness rating, 1.6990 inches minimum and 1.7040 inches maximum overall length, 0.2540 inches minimum and 0.2590 inches maximum body inside diameter, 0.4325 inches minimum and 0.4335 inches maximum body outside diameter, square all corners corner shape