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 Air Force 
Brazil 
Malaysia Classification: Other articles of iron or steel not wire nesoi
NSN 5910-01-327-4640
NSN 5998-01-596-1793
NSN 6685-00-465-2019
NSN 2925-01-285-7163
NSN 5920-00-267-3109
NSN 5996-01-642-8620
NSN 6645-01-140-0868
NSN 5935-00-623-8256
NSN 6110-01-143-3362
NSN 5925-01-168-9890
NSN 5905-01-523-7231
NSN 5905-00-766-4927