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 5998-00-932-1607
NSN 5915-01-419-1053
NSN 5950-00-671-7756
NSN 5985-00-699-9127
NSN 6320-01-216-1678
NSN 5855-01-452-1406
NSN 5920-01-364-9164
NSN 5930-00-859-6355
NSN 6320-01-054-3046
NSN 5985-00-722-3791
NSN 5960-01-538-2082
NSN 5996-01-383-7298