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 5999-01-207-5994
NSN 6240-01-062-0878
NSN 5950-01-285-6673
NSN 5975-00-765-3409
NSN 5985-01-453-6949
NSN 5965-01-296-8991
NSN 6105-01-477-5508
NSN 6220-01-608-6150
NSN 5998-01-254-4346
NSN 5990-01-605-4769
NSN 5895-01-415-2476
NSN 5905-01-424-7462