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 5905-01-048-9167
NSN 5999-01-261-9138
NSN 5935-01-285-9900
NSN 5905-00-227-4999
NSN 5975-01-521-4376
NSN 6105-00-185-1579
NSN 7035-01-569-5516
NSN 5996-01-267-8082
NSN 5835-00-911-6330
NSN 5998-01-468-5895
NSN 6240-01-524-5718
NSN 5855-00-055-1579