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 5950-00-529-0264
NSN 5960-01-465-6847
NSN 6150-01-422-4554
NSN 6220-01-326-7204
NSN 6150-00-015-7284
NSN 5945-01-138-7862
NSN 5999-01-462-6133
NSN 6220-01-605-6609
NSN 5996-01-349-6986
NSN 5930-01-364-2178
NSN 6110-01-534-3881
NSN 5996-00-438-0153