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 5920-00-968-7478
NSN 5925-01-401-5314
NSN 6150-00-315-1195
NSN 5895-01-590-6197
NSN 6645-01-174-0859
NSN 6320-01-054-3046
NSN 5855-00-361-0167
NSN 5915-01-323-7154
NSN 6135-01-357-0621
NSN 6110-00-161-4115
NSN 5915-01-457-7725
NSN 5920-01-440-2492