0.375 inches minimum and 0.382 inches maximum hole diameter, 2.480 inches minimum and 2.520 inches maximum overall length, 2.480 inches minimum and 2.520 inches maximum overall width, 2.105 inches minimum and 2.145 inches maximum aperture diameter, 0.297 inches minimum and 0.328 inches maximum outside corner radius, 1.855 inches minimum and 1.895 inches maximum center to center distance between bolt holes along width

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.