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 6240-00-021-1296
NSN 6105-01-519-8003
NSN 6220-01-328-6574
NSN 5960-01-425-1454
NSN 5905-00-874-6698
NSN 5935-01-139-6927
NSN 5998-00-653-0085
NSN 6110-01-384-3259
NSN 5985-01-372-0615
NSN 6105-01-093-8793
NSN 5950-00-320-7726
NSN 5975-01-216-2900