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 7035-00-003-7518
NSN 6110-01-375-0949
NSN 5935-01-435-5065
NSN 5996-01-480-3431
NSN 5990-00-521-2980
NSN 6220-01-330-4425
NSN 5999-00-611-3621
NSN 2925-01-084-3347
NSN 5895-00-692-2912
NSN 5990-00-011-2994
NSN 5996-01-089-5339
NSN 6610-01-033-1748