An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.
Classification: Thrust ball bearings
NSN 5960-01-502-6270
NSN 5935-01-406-3486
NSN 6685-01-480-1376
NSN 5915-01-301-1541
NSN 5920-01-416-7692
NSN 6685-01-269-8483
NSN 5999-01-471-7731
NSN 7035-01-056-4603
NSN 5855-00-089-3974
NSN 5998-01-576-8857
NSN 5905-01-432-1730
NSN 5935-01-447-3563