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 5895-00-100-4311
NSN 5998-01-574-9346
NSN 6650-01-423-8131
NSN 6240-00-518-3541
NSN 6685-01-293-4505
NSN 6110-01-116-2348
NSN 5985-00-838-1557
NSN 5960-01-137-2329
NSN 5920-00-765-2867
NSN 6150-01-381-5676
NSN 5965-00-529-0602
NSN 5895-00-596-8678