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 5910-01-336-5316
NSN 6620-01-313-2211
NSN 5960-00-034-7925
NSN 5895-01-209-5334
NSN 5985-00-802-6475
NSN 6145-01-564-9204
NSN 5915-01-376-8554
NSN 5999-01-021-6628
NSN 5835-01-535-0948
NSN 5910-01-057-3087
NSN 6645-00-418-2133
NSN 6105-01-490-0299