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 5965-00-249-6980
NSN 5950-00-256-9965
NSN 6650-00-578-6543
NSN 6105-01-500-7599
NSN 5945-01-393-4182
NSN 5925-00-490-5161
NSN 5905-00-964-9972
NSN 6105-00-012-3063
NSN 5905-00-356-6691
NSN 5945-01-403-2800
NSN 5996-01-452-9044
NSN 6685-01-158-5454