A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 7035-01-408-6802
NSN 5910-00-243-9425
NSN 5905-01-309-9656
NSN 5965-00-653-4782
NSN 7035-01-220-6392
NSN 6320-01-504-3948
NSN 5999-00-148-8187
NSN 5996-00-548-8762
NSN 5910-01-611-6842
NSN 5920-00-935-2275
NSN 5935-00-437-7225
NSN 5915-00-233-4455