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 5945-01-469-7423
NSN 4140-00-928-3640
NSN 6110-01-214-8201
NSN 5990-01-182-5913
NSN 6650-00-862-2142
NSN 6650-01-499-1784
NSN 5999-00-065-9712
NSN 5895-00-150-0374
NSN 6685-00-578-5951
NSN 6150-00-081-9928
NSN 5999-01-235-6880
NSN 6145-01-649-0650