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.
Dept. of the Navy 
Canada 
Italy 
Turkey NSN 5960-01-419-9156
NSN 6620-01-495-7446
NSN 6650-01-333-9155
NSN 6130-01-524-2740
NSN 6150-01-594-2384
NSN 6150-00-728-5972
NSN 6105-01-317-8065
NSN 7035-01-629-9426
NSN 5996-01-107-2577
NSN 5945-01-446-7074
NSN 5835-01-128-9331
NSN 5910-00-834-7876