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 5975-01-259-6848
NSN 6150-01-326-0434
NSN 5915-00-755-9664
NSN 6620-01-323-3587
NSN 5999-00-003-8958
NSN 5990-01-113-0303
NSN 7035-01-606-9692
NSN 5895-01-184-9515
NSN 6610-01-176-3539
NSN 6150-01-383-7068
NSN 5996-01-619-6176
NSN 5950-00-189-4705