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 5935-01-429-9062
NSN 6650-01-359-4238
NSN 7035-00-946-2642
NSN 5965-00-823-8623
NSN 6645-00-230-4396
NSN 5985-00-057-6347
NSN 5996-01-358-2655
NSN 6685-00-421-5420
NSN 6130-00-628-6879
NSN 6105-01-387-4222
NSN 7035-01-048-7122
NSN 4140-01-634-0330