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
NSN 5999-01-389-1906
NSN 5999-01-378-6856
NSN 5835-01-462-5983
NSN 5996-00-316-5115
NSN 5915-01-372-8918
NSN 6130-01-348-9603
NSN 6240-00-181-2503
NSN 5960-01-438-0245
NSN 5835-01-281-7281
NSN 2925-01-196-6187
NSN 5985-00-035-4558