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 5990-01-386-5561
NSN 6110-00-248-7475
NSN 5990-00-719-4947
NSN 5999-00-880-9971
NSN 5835-01-495-5986
NSN 5920-01-386-3188
NSN 2925-01-464-3093
NSN 6150-01-202-8214
NSN 6645-00-435-5610
NSN 6105-01-157-7011
NSN 6220-01-442-8707
NSN 5996-01-633-7979