A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.
square all corners corner shape, 0.4375 inches minimum and 0.4385 inches maximum body inside diameter, ams 5643 assn std 1st material response or a66,aisi 410/sae 5140 fed std single material response or a6,aisi 416/sae 5146 fed std single material response outer layer material document and classification, 0.5610 inches minimum and 0.5615 inches maximum body outside diameter, 0.6150 inches minimum and 0.6350 inches maximum overall length