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 5965-01-528-6453
NSN 5905-01-461-7684
NSN 5975-01-014-3921
NSN 5975-01-457-9491
NSN 5945-00-943-9278
NSN 6240-01-295-7324
NSN 6105-01-543-9596
NSN 6130-00-103-0193
NSN 5935-00-007-0842
NSN 5960-01-599-9821
NSN 6105-01-381-4733
NSN 5950-00-521-9412