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 5895-01-342-8945
NSN 6135-01-554-4281
NSN 5950-00-793-1847
NSN 6145-00-884-8112
NSN 6645-01-434-9993
NSN 5935-01-041-1354
NSN 5835-01-378-6804
NSN 6320-01-449-1014
NSN 5835-00-593-8511
NSN 5950-00-826-3833
NSN 5855-01-497-8834
NSN 5905-01-453-4607