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 5920-00-963-0140
NSN 5895-01-371-3774
NSN 5905-01-421-4375
NSN 5950-00-727-4668
NSN 5905-00-464-4180
NSN 2925-00-284-1534
NSN 6135-00-134-6648
NSN 6105-01-620-9398
NSN 5935-01-212-1273
NSN 6220-01-311-1753
NSN 5965-00-912-9318
NSN 6130-00-528-7838