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 5990-01-417-4402
NSN 6130-01-469-6139
NSN 5965-01-005-0341
NSN 5965-00-099-0698
NSN 5915-00-576-0252
NSN 6650-01-573-7165
NSN 6105-01-590-3278
NSN 5895-00-504-7700
NSN 5905-01-393-9721
NSN 5920-01-227-4623
NSN 5999-01-340-6444
NSN 5920-01-085-6437