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 5835-00-003-0295
NSN 5998-01-151-4489
NSN 6645-00-163-9580
NSN 5910-00-141-5934
NSN 5915-00-174-0474
NSN 6650-00-481-2474
NSN 6685-01-441-9747
NSN 6110-01-508-6563
NSN 5999-01-329-3650
NSN 7035-01-459-9598
NSN 5996-01-426-8531
NSN 5835-00-478-6508