0.6530 inches minimum and 0.6550 inches maximum overall length, 0.3730 inches minimum and 0.3750 inches maximum body outside diameter, 0.2500 inches minimum and 0.2520 inches maximum body inside diameter, square all corners corner shape, steel comp 303 overall material, 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.