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 5920-01-477-7221
NSN 4140-00-795-3747
NSN 6110-00-719-7209
NSN 7035-01-121-0901
NSN 5920-00-890-8999
NSN 6320-00-593-0379
NSN 6135-00-539-8088
NSN 6105-00-970-5084
NSN 6610-00-239-2374
NSN 6620-01-646-8593
NSN 2925-00-925-0545
NSN 6610-00-499-4642