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.
square all corners corner shape, 3.2538 inches minimum and 3.2543 inches maximum body outside diameter, 0.5150 inches minimum and 0.5250 inches maximum overall length, ams6415 assn std 1st material response or mil-s-5000 mil spec 2nd material response or mil-t-6736 mil spec 3rd material response overall material document and classification, 3.0700 inches minimum and 3.0900 inches maximum body inside diameter