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 5999-01-236-4091
NSN 6320-01-015-9856
NSN 6320-00-506-2314
NSN 6320-01-415-0953
NSN 6620-01-431-9176
NSN 5990-00-845-2864
NSN 4140-01-020-4000
NSN 6150-01-153-2315
NSN 5855-00-494-9581
NSN 5965-01-098-1306
NSN 6150-01-070-3790
NSN 7035-01-462-1957