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 6135-01-445-6589
NSN 6135-01-493-8375
NSN 5925-01-484-6975
NSN 5996-01-020-5759
NSN 5930-01-391-5093
NSN 5925-00-018-6646
NSN 4140-00-817-6009
NSN 5930-00-761-9125
NSN 5996-01-166-8416
NSN 6685-01-147-3662
NSN 5920-01-447-8643
NSN 4140-01-469-2266