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 6610-01-302-2073
NSN 5999-01-617-5222
NSN 5999-00-928-5658
NSN 6150-00-350-3086
NSN 5945-01-579-7073
NSN 6130-01-085-3085
NSN 5930-01-378-8776
NSN 6320-01-170-4068
NSN 5945-01-124-8592
NSN 4140-01-234-3952
NSN 5905-00-581-7051
NSN 5960-01-325-2241