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 5999-00-916-3871
NSN 5835-01-568-7796
NSN 6645-01-442-6476
NSN 6685-00-116-2839
NSN 6610-01-435-8982
NSN 5915-00-138-5867
NSN 5835-01-031-7265
NSN 5935-01-286-3629
NSN 6645-01-368-1508
NSN 6150-01-054-1696
NSN 6130-01-364-8492
NSN 6110-01-625-1998