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 5895-01-563-0023
NSN 6220-00-135-6516
NSN 6135-00-057-2005
NSN 6135-01-440-9412
NSN 6650-01-559-2198
NSN 6620-01-411-5750
NSN 6620-01-548-2693
NSN 6135-00-850-3177
NSN 5915-00-421-4762
NSN 5965-01-633-8849
NSN 6645-00-772-0532
NSN 5965-01-122-2750