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 6650-01-436-1173
NSN 6620-01-381-6225
NSN 5990-01-007-9483
NSN 5975-00-144-7878
NSN 7035-00-941-4949
NSN 5975-01-030-4841
NSN 6145-01-596-7027
NSN 6240-01-094-7717
NSN 5998-01-588-5994
NSN 5950-01-055-3985
NSN 6240-01-226-2902
NSN 5965-00-983-1815