2.5 inch thick
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 2925-00-308-0797
NSN 6610-00-473-0548
NSN 5965-01-227-9937
NSN 6135-01-570-4284
NSN 5975-01-603-0625
NSN 2925-01-327-3069
NSN 6620-00-621-2380
NSN 5985-00-132-4214
NSN 5999-01-400-2606
NSN 6135-01-056-4609
NSN 6610-01-407-8144
NSN 5975-01-114-6082