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 6620-01-398-7326
NSN 5895-01-088-6458
NSN 6610-01-016-2722
NSN 5985-00-357-6086
NSN 5950-01-473-6940
NSN 5998-01-645-8098
NSN 7035-01-539-6018
NSN 6220-01-588-4675
NSN 5925-01-418-4541
NSN 5835-01-054-2094
NSN 5999-00-869-8704
NSN 5930-01-607-1365