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 5996-00-893-2673
NSN 6320-01-420-0340
NSN 5999-00-858-6232
NSN 5915-01-227-2337
NSN 6110-01-335-6815
NSN 6620-01-053-6650
NSN 5960-00-195-6435
NSN 5998-01-004-6664
NSN 5835-01-071-6376
NSN 5925-01-386-6188
NSN 5935-00-425-4383
NSN 6105-00-603-2426