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: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 4140-01-304-5882
NSN 5915-01-250-6326
NSN 6620-01-440-9810
NSN 5965-00-762-0630
NSN 6685-01-177-1460
NSN 6145-01-606-1397
NSN 6240-01-309-1806
NSN 5905-01-070-9065
NSN 5855-00-548-4742
NSN 6645-01-588-5591
NSN 7035-00-104-7613
NSN 2925-00-881-3770