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 5999-01-518-4820
NSN 6110-01-584-5324
NSN 5965-01-460-4172
NSN 6685-00-042-4443
NSN 5985-00-289-9862
NSN 5960-01-257-0225
NSN 5925-00-409-1731
NSN 5990-00-724-4375
NSN 5910-01-532-9091
NSN 5945-00-067-6406
NSN 5935-00-691-9149
NSN 5999-01-254-3209