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 5925-01-606-9959
NSN 2925-00-968-7795
NSN 6105-00-673-4725
NSN 5925-00-489-5427
NSN 2925-00-555-8836
NSN 6620-01-184-3193
NSN 6220-01-424-2478
NSN 6650-00-597-7313
NSN 5945-00-328-7300
NSN 6685-00-582-1215
NSN 6145-01-420-6132
NSN 5895-01-280-9822