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 5985-01-447-3043
NSN 5925-01-258-0488
NSN 6610-01-345-1110
NSN 6610-01-008-9636
NSN 6610-01-415-1623
NSN 5950-01-350-1247
NSN 6145-00-286-9588
NSN 5925-01-303-6057
NSN 5935-01-578-7790
NSN 2925-01-032-3814
NSN 5905-01-286-7049
NSN 5998-00-277-7552