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 6105-01-088-8133
NSN 5985-01-583-5597
NSN 6320-01-448-1189
NSN 6645-01-356-2302
NSN 5855-01-357-7907
NSN 6645-01-377-7866
NSN 6105-00-755-7087
NSN 6240-01-155-2959
NSN 5835-01-100-7405
NSN 6105-01-439-5230
NSN 5930-00-133-3016
NSN 6685-00-995-4957