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 5950-01-100-3505
NSN 5895-00-525-3295
NSN 5996-01-154-6478
NSN 5975-01-320-1271
NSN 6650-01-196-4667
NSN 5945-01-419-4294
NSN 6645-01-578-7959
NSN 6145-00-833-7753
NSN 5930-00-437-5936
NSN 5920-00-314-6870
NSN 5950-00-341-5259
NSN 6105-00-839-1511