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 6240-00-269-3346
NSN 6220-01-350-3108
NSN 5835-00-554-0399
NSN 5835-00-807-5632
NSN 6320-01-498-4954
NSN 6110-01-481-7393
NSN 5855-00-951-6483
NSN 5950-01-237-5449
NSN 5925-01-257-8244
NSN 6220-00-088-0580
NSN 6650-01-471-0574
NSN 6150-00-707-0123