Surface finish on top/bottom only per cat specification hfs
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 5960-01-450-4693
NSN 5999-01-180-5829
NSN 6135-00-756-6149
NSN 5945-00-900-5518
NSN 6650-01-497-1773
NSN 5999-01-616-6651
NSN 5945-00-529-0409
NSN 6110-01-603-3592
NSN 5965-01-087-2987
NSN 5985-01-326-7517
NSN 6135-01-417-6539
NSN 6320-01-198-4024