Hole shape: round; outside shape: round
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.
NSN 4140-01-413-9378
NSN 6685-01-079-0270
NSN 6645-01-629-9657
NSN 6150-01-603-1119
NSN 5895-01-437-8871
NSN 5999-00-776-6084
NSN 5835-01-242-9806
NSN 5998-01-508-2502
NSN 5998-00-014-6407
NSN 5925-01-657-4884
NSN 5935-01-469-0266
NSN 5965-00-035-4556