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: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 4140-01-504-9512
NSN 6145-01-089-9879
NSN 5945-01-361-8761
NSN 6620-00-803-2346
NSN 6220-01-330-2669
NSN 2925-01-140-7614
NSN 6240-01-112-1120
NSN 6610-01-529-5709
NSN 5920-01-111-1214
NSN 6650-00-466-1697
NSN 5996-00-960-7810
NSN 6105-01-540-8713