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 5895-00-297-6689
NSN 2925-01-196-6187
NSN 4140-01-420-4586
NSN 5895-00-349-3968
NSN 6645-01-591-3970
NSN 5960-01-144-1515
NSN 6150-01-619-3345
NSN 6150-01-452-9626
NSN 5990-01-443-2931
NSN 6150-01-396-0938
NSN 6645-00-879-3867
NSN 6150-01-344-7635