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 6150-01-654-1788
NSN 6685-00-217-9010
NSN 5990-00-288-1820
NSN 5998-00-473-2035
NSN 6220-01-250-0171
NSN 5990-01-651-0170
NSN 5905-00-880-2376
NSN 5975-01-291-3314
NSN 5920-01-615-8118
NSN 4140-00-981-8580
NSN 5965-00-669-9146
NSN 6610-00-449-2703