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 5998-01-468-5460
NSN 5950-01-326-8508
NSN 6130-00-438-3905
NSN 5945-00-333-1166
NSN 6620-00-403-6787
NSN 5910-01-046-0386
NSN 5990-00-904-7315
NSN 5895-01-103-8639
NSN 5835-00-155-1379
NSN 5975-00-374-5245
NSN 5960-01-253-5634
NSN 5950-00-157-3785