1.2470 inches minimum and 1.2490 inches maximum overall length, 0.6180 inches minimum and 0.6200 inches maximum body outside diameter, 0.4380 inches minimum and 0.4390 inches maximum body inside diameter, square all corners corner shape, 34.0 rockwell c minimum overall and 39.0 rockwell c maximum overall hardness rating, solid, plain, no outside flanges style designator

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.