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 5985-01-007-6652
NSN 5935-00-018-7343
NSN 5950-00-257-3806
NSN 5996-01-188-7934
NSN 6610-01-626-2327
NSN 5910-00-946-9120
NSN 6110-01-528-4034
NSN 5960-01-450-8539
NSN 6240-00-284-1457
NSN 6610-01-379-6750
NSN 6135-01-416-8342
NSN 6610-01-016-9999