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 5999-01-535-6964
NSN 6620-01-333-7014
NSN 5960-01-589-5236
NSN 6650-00-348-2453
NSN 6220-01-057-7365
NSN 6650-01-090-6552
NSN 6685-01-050-1828
NSN 5965-01-441-8826
NSN 6645-00-351-8580
NSN 5999-01-360-5608
NSN 2925-00-301-0933
NSN 5950-01-556-1404