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 5835-00-987-9341
NSN 6110-00-556-8425
NSN 6650-00-023-5054
NSN 6145-01-246-3827
NSN 5905-01-118-9554
NSN 6150-01-257-9211
NSN 5999-00-938-7220
NSN 5910-01-056-5111
NSN 5950-00-167-5035
NSN 5975-01-031-3216
NSN 5895-01-228-2213
NSN 6320-01-078-8257