5340-00-175-9029

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.

mil-s-5059, comp 302 mil spec 1st material response or mil-s-5059 mil spec 2nd material response or mil-s-6721 mil spec 2nd material response or mil-s-7720, comp 303 mil spec 3rd material response or qq-s-763, class 303 fed spec 3rd material response material document and classification, 0.008 inches minimum and 0.012 inches maximum thickness, steel comp 302 or steel or steel comp 303 material, 0.470 inches minimum and 0.490 inches maximum diameter