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 5996-01-322-4838
NSN 5935-01-278-9117
NSN 6650-00-997-4337
NSN 5990-00-147-3144
NSN 5935-01-008-9899
NSN 6145-01-171-0719
NSN 5855-00-548-4742
NSN 5996-01-465-6463
NSN 6645-01-545-2954
NSN 6105-01-433-8804
NSN 5910-01-090-0707
NSN 5905-00-146-4303