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 5920-01-612-1424
NSN 6645-00-144-3392
NSN 6220-01-634-0660
NSN 5996-01-284-8835
NSN 5915-01-609-8605
NSN 6645-00-960-6594
NSN 6110-00-597-8072
NSN 5990-00-244-8684
NSN 5915-01-411-1071
NSN 5985-01-265-1100
NSN 6220-00-913-8486
NSN 6150-01-296-6263