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 5905-01-536-4149
NSN 5960-01-243-0007
NSN 5925-00-867-8619
NSN 6110-01-258-6220
NSN 6650-01-469-2400
NSN 5915-01-422-8722
NSN 6150-00-349-4790
NSN 5965-01-582-7635
NSN 5998-01-101-6426
NSN 7035-01-441-7586
NSN 6105-00-153-7967
NSN 5855-01-064-8961